Apply IPC patch

This commit is contained in:
Luke Else 2022-08-16 21:58:39 +01:00
parent b53549a59b
commit c24b89aaee
14 changed files with 6177 additions and 13 deletions

66
IPCClient.c Normal file
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@ -0,0 +1,66 @@
#include "IPCClient.h"
#include <string.h>
#include <sys/epoll.h>
#include "util.h"
IPCClient *
ipc_client_new(int fd)
{
IPCClient *c = (IPCClient *)malloc(sizeof(IPCClient));
if (c == NULL) return NULL;
// Initialize struct
memset(&c->event, 0, sizeof(struct epoll_event));
c->buffer_size = 0;
c->buffer = NULL;
c->fd = fd;
c->event.data.fd = fd;
c->next = NULL;
c->prev = NULL;
c->subscriptions = 0;
return c;
}
void
ipc_list_add_client(IPCClientList *list, IPCClient *nc)
{
DEBUG("Adding client with fd %d to list\n", nc->fd);
if (*list == NULL) {
// List is empty, point list at first client
*list = nc;
} else {
IPCClient *c;
// Go to last client in list
for (c = *list; c && c->next; c = c->next)
;
c->next = nc;
nc->prev = c;
}
}
void
ipc_list_remove_client(IPCClientList *list, IPCClient *c)
{
IPCClient *cprev = c->prev;
IPCClient *cnext = c->next;
if (cprev != NULL) cprev->next = c->next;
if (cnext != NULL) cnext->prev = c->prev;
if (c == *list) *list = c->next;
}
IPCClient *
ipc_list_get_client(IPCClientList list, int fd)
{
for (IPCClient *c = list; c; c = c->next) {
if (c->fd == fd) return c;
}
return NULL;
}

61
IPCClient.h Normal file
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@ -0,0 +1,61 @@
#ifndef IPC_CLIENT_H_
#define IPC_CLIENT_H_
#include <stdio.h>
#include <stdlib.h>
#include <sys/epoll.h>
typedef struct IPCClient IPCClient;
/**
* This structure contains the details of an IPC Client and pointers for a
* linked list
*/
struct IPCClient {
int fd;
int subscriptions;
char *buffer;
uint32_t buffer_size;
struct epoll_event event;
IPCClient *next;
IPCClient *prev;
};
typedef IPCClient *IPCClientList;
/**
* Allocate memory for new IPCClient with the specified file descriptor and
* initialize struct.
*
* @param fd File descriptor of IPC client
*
* @return Address to allocated IPCClient struct
*/
IPCClient *ipc_client_new(int fd);
/**
* Add an IPC Client to the specified list
*
* @param list Address of the list to add the client to
* @param nc Address of the IPCClient
*/
void ipc_list_add_client(IPCClientList *list, IPCClient *nc);
/**
* Remove an IPCClient from the specified list
*
* @param list Address of the list to remove the client from
* @param c Address of the IPCClient
*/
void ipc_list_remove_client(IPCClientList *list, IPCClient *c);
/**
* Get an IPCClient from the specified IPCClient list
*
* @param list List to remove the client from
* @param fd File descriptor of the IPCClient
*/
IPCClient *ipc_list_get_client(IPCClientList list, int fd);
#endif // IPC_CLIENT_H_

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@ -6,7 +6,7 @@ include config.mk
SRC = drw.c dwm.c util.c
OBJ = ${SRC:.c=.o}
all: options dwm
all: options dwm dwm-msg
options:
@echo dwm build options:
@ -25,8 +25,11 @@ config.h:
dwm: ${OBJ}
${CC} -o $@ ${OBJ} ${LDFLAGS}
dwm-msg: dwm-msg.o
${CC} -o $@ $< ${LDFLAGS}
clean:
rm -f dwm ${OBJ} dwm-${VERSION}.tar.gz
rm -f dwm dwm-msg ${OBJ} dwm-${VERSION}.tar.gz
dist: clean
mkdir -p dwm-${VERSION}
@ -38,8 +41,9 @@ dist: clean
install: all
mkdir -p ${DESTDIR}${PREFIX}/bin
cp -f dwm ${DESTDIR}${PREFIX}/bin
cp -f dwm dwm-msg ${DESTDIR}${PREFIX}/bin
chmod 755 ${DESTDIR}${PREFIX}/bin/dwm
chmod 755 ${DESTDIR}${PREFIX}/bin/dwm-msg
mkdir -p ${DESTDIR}${MANPREFIX}/man1
sed "s/VERSION/${VERSION}/g" < dwm.1 > ${DESTDIR}${MANPREFIX}/man1/dwm.1
chmod 644 ${DESTDIR}${MANPREFIX}/man1/dwm.1

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@ -114,3 +114,21 @@ static Button buttons[] = {
{ ClkTagBar, MODKEY, Button3, toggletag, {0} },
};
static const char *ipcsockpath = "/tmp/dwm.sock";
static IPCCommand ipccommands[] = {
IPCCOMMAND( view, 1, {ARG_TYPE_UINT} ),
IPCCOMMAND( toggleview, 1, {ARG_TYPE_UINT} ),
IPCCOMMAND( tag, 1, {ARG_TYPE_UINT} ),
IPCCOMMAND( toggletag, 1, {ARG_TYPE_UINT} ),
IPCCOMMAND( tagmon, 1, {ARG_TYPE_UINT} ),
IPCCOMMAND( focusmon, 1, {ARG_TYPE_SINT} ),
IPCCOMMAND( focusstack, 1, {ARG_TYPE_SINT} ),
IPCCOMMAND( zoom, 1, {ARG_TYPE_NONE} ),
IPCCOMMAND( incnmaster, 1, {ARG_TYPE_SINT} ),
IPCCOMMAND( killclient, 1, {ARG_TYPE_SINT} ),
IPCCOMMAND( togglefloating, 1, {ARG_TYPE_NONE} ),
IPCCOMMAND( setmfact, 1, {ARG_TYPE_FLOAT} ),
IPCCOMMAND( setlayoutsafe, 1, {ARG_TYPE_PTR} ),
IPCCOMMAND( quit, 1, {ARG_TYPE_NONE} )
};

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@ -20,9 +20,13 @@ FREETYPEINC = /usr/include/freetype2
# OpenBSD (uncomment)
#FREETYPEINC = ${X11INC}/freetype2
# yajl
YAJLLIBS = -lyajl
YAJLINC = /usr/include/yajl
# includes and libs
INCS = -I${X11INC} -I${FREETYPEINC}
LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
INCS = -I${X11INC} -I${FREETYPEINC} -I${YAJLINC}
LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} ${YAJLLIBS}
# flags
CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=200809L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}

File diff suppressed because it is too large Load Diff

548
dwm-msg.c Normal file
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@ -0,0 +1,548 @@
#include <ctype.h>
#include <errno.h>
#include <inttypes.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <yajl/yajl_gen.h>
#define IPC_MAGIC "DWM-IPC"
// clang-format off
#define IPC_MAGIC_ARR { 'D', 'W', 'M', '-', 'I', 'P', 'C' }
// clang-format on
#define IPC_MAGIC_LEN 7 // Not including null char
#define IPC_EVENT_TAG_CHANGE "tag_change_event"
#define IPC_EVENT_CLIENT_FOCUS_CHANGE "client_focus_change_event"
#define IPC_EVENT_LAYOUT_CHANGE "layout_change_event"
#define IPC_EVENT_MONITOR_FOCUS_CHANGE "monitor_focus_change_event"
#define IPC_EVENT_FOCUSED_TITLE_CHANGE "focused_title_change_event"
#define IPC_EVENT_FOCUSED_STATE_CHANGE "focused_state_change_event"
#define YSTR(str) yajl_gen_string(gen, (unsigned char *)str, strlen(str))
#define YINT(num) yajl_gen_integer(gen, num)
#define YDOUBLE(num) yajl_gen_double(gen, num)
#define YBOOL(v) yajl_gen_bool(gen, v)
#define YNULL() yajl_gen_null(gen)
#define YARR(body) \
{ \
yajl_gen_array_open(gen); \
body; \
yajl_gen_array_close(gen); \
}
#define YMAP(body) \
{ \
yajl_gen_map_open(gen); \
body; \
yajl_gen_map_close(gen); \
}
typedef unsigned long Window;
const char *DEFAULT_SOCKET_PATH = "/tmp/dwm.sock";
static int sock_fd = -1;
static unsigned int ignore_reply = 0;
typedef enum IPCMessageType {
IPC_TYPE_RUN_COMMAND = 0,
IPC_TYPE_GET_MONITORS = 1,
IPC_TYPE_GET_TAGS = 2,
IPC_TYPE_GET_LAYOUTS = 3,
IPC_TYPE_GET_DWM_CLIENT = 4,
IPC_TYPE_SUBSCRIBE = 5,
IPC_TYPE_EVENT = 6
} IPCMessageType;
// Every IPC message must begin with this
typedef struct dwm_ipc_header {
uint8_t magic[IPC_MAGIC_LEN];
uint32_t size;
uint8_t type;
} __attribute((packed)) dwm_ipc_header_t;
static int
recv_message(uint8_t *msg_type, uint32_t *reply_size, uint8_t **reply)
{
uint32_t read_bytes = 0;
const int32_t to_read = sizeof(dwm_ipc_header_t);
char header[to_read];
char *walk = header;
// Try to read header
while (read_bytes < to_read) {
ssize_t n = read(sock_fd, header + read_bytes, to_read - read_bytes);
if (n == 0) {
if (read_bytes == 0) {
fprintf(stderr, "Unexpectedly reached EOF while reading header.");
fprintf(stderr,
"Read %" PRIu32 " bytes, expected %" PRIu32 " total bytes.\n",
read_bytes, to_read);
return -2;
} else {
fprintf(stderr, "Unexpectedly reached EOF while reading header.");
fprintf(stderr,
"Read %" PRIu32 " bytes, expected %" PRIu32 " total bytes.\n",
read_bytes, to_read);
return -3;
}
} else if (n == -1) {
return -1;
}
read_bytes += n;
}
// Check if magic string in header matches
if (memcmp(walk, IPC_MAGIC, IPC_MAGIC_LEN) != 0) {
fprintf(stderr, "Invalid magic string. Got '%.*s', expected '%s'\n",
IPC_MAGIC_LEN, walk, IPC_MAGIC);
return -3;
}
walk += IPC_MAGIC_LEN;
// Extract reply size
memcpy(reply_size, walk, sizeof(uint32_t));
walk += sizeof(uint32_t);
// Extract message type
memcpy(msg_type, walk, sizeof(uint8_t));
walk += sizeof(uint8_t);
(*reply) = malloc(*reply_size);
// Extract payload
read_bytes = 0;
while (read_bytes < *reply_size) {
ssize_t n = read(sock_fd, *reply + read_bytes, *reply_size - read_bytes);
if (n == 0) {
fprintf(stderr, "Unexpectedly reached EOF while reading payload.");
fprintf(stderr, "Read %" PRIu32 " bytes, expected %" PRIu32 " bytes.\n",
read_bytes, *reply_size);
free(*reply);
return -2;
} else if (n == -1) {
if (errno == EINTR || errno == EAGAIN) continue;
free(*reply);
return -1;
}
read_bytes += n;
}
return 0;
}
static int
read_socket(IPCMessageType *msg_type, uint32_t *msg_size, char **msg)
{
int ret = -1;
while (ret != 0) {
ret = recv_message((uint8_t *)msg_type, msg_size, (uint8_t **)msg);
if (ret < 0) {
// Try again (non-fatal error)
if (ret == -1 && (errno == EINTR || errno == EAGAIN)) continue;
fprintf(stderr, "Error receiving response from socket. ");
fprintf(stderr, "The connection might have been lost.\n");
exit(2);
}
}
return 0;
}
static ssize_t
write_socket(const void *buf, size_t count)
{
size_t written = 0;
while (written < count) {
const ssize_t n =
write(sock_fd, ((uint8_t *)buf) + written, count - written);
if (n == -1) {
if (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR)
continue;
else
return n;
}
written += n;
}
return written;
}
static void
connect_to_socket()
{
struct sockaddr_un addr;
int sock = socket(AF_UNIX, SOCK_STREAM, 0);
// Initialize struct to 0
memset(&addr, 0, sizeof(struct sockaddr_un));
addr.sun_family = AF_UNIX;
strcpy(addr.sun_path, DEFAULT_SOCKET_PATH);
connect(sock, (const struct sockaddr *)&addr, sizeof(struct sockaddr_un));
sock_fd = sock;
}
static int
send_message(IPCMessageType msg_type, uint32_t msg_size, uint8_t *msg)
{
dwm_ipc_header_t header = {
.magic = IPC_MAGIC_ARR, .size = msg_size, .type = msg_type};
size_t header_size = sizeof(dwm_ipc_header_t);
size_t total_size = header_size + msg_size;
uint8_t buffer[total_size];
// Copy header to buffer
memcpy(buffer, &header, header_size);
// Copy message to buffer
memcpy(buffer + header_size, msg, header.size);
write_socket(buffer, total_size);
return 0;
}
static int
is_float(const char *s)
{
size_t len = strlen(s);
int is_dot_used = 0;
int is_minus_used = 0;
// Floats can only have one decimal point in between or digits
// Optionally, floats can also be below zero (negative)
for (int i = 0; i < len; i++) {
if (isdigit(s[i]))
continue;
else if (!is_dot_used && s[i] == '.' && i != 0 && i != len - 1) {
is_dot_used = 1;
continue;
} else if (!is_minus_used && s[i] == '-' && i == 0) {
is_minus_used = 1;
continue;
} else
return 0;
}
return 1;
}
static int
is_unsigned_int(const char *s)
{
size_t len = strlen(s);
// Unsigned int can only have digits
for (int i = 0; i < len; i++) {
if (isdigit(s[i]))
continue;
else
return 0;
}
return 1;
}
static int
is_signed_int(const char *s)
{
size_t len = strlen(s);
// Signed int can only have digits and a negative sign at the start
for (int i = 0; i < len; i++) {
if (isdigit(s[i]))
continue;
else if (i == 0 && s[i] == '-') {
continue;
} else
return 0;
}
return 1;
}
static void
flush_socket_reply()
{
IPCMessageType reply_type;
uint32_t reply_size;
char *reply;
read_socket(&reply_type, &reply_size, &reply);
free(reply);
}
static void
print_socket_reply()
{
IPCMessageType reply_type;
uint32_t reply_size;
char *reply;
read_socket(&reply_type, &reply_size, &reply);
printf("%.*s\n", reply_size, reply);
fflush(stdout);
free(reply);
}
static int
run_command(const char *name, char *args[], int argc)
{
const unsigned char *msg;
size_t msg_size;
yajl_gen gen = yajl_gen_alloc(NULL);
// Message format:
// {
// "command": "<name>",
// "args": [ ... ]
// }
// clang-format off
YMAP(
YSTR("command"); YSTR(name);
YSTR("args"); YARR(
for (int i = 0; i < argc; i++) {
if (is_signed_int(args[i])) {
long long num = atoll(args[i]);
YINT(num);
} else if (is_float(args[i])) {
float num = atof(args[i]);
YDOUBLE(num);
} else {
YSTR(args[i]);
}
}
)
)
// clang-format on
yajl_gen_get_buf(gen, &msg, &msg_size);
send_message(IPC_TYPE_RUN_COMMAND, msg_size, (uint8_t *)msg);
if (!ignore_reply)
print_socket_reply();
else
flush_socket_reply();
yajl_gen_free(gen);
return 0;
}
static int
get_monitors()
{
send_message(IPC_TYPE_GET_MONITORS, 1, (uint8_t *)"");
print_socket_reply();
return 0;
}
static int
get_tags()
{
send_message(IPC_TYPE_GET_TAGS, 1, (uint8_t *)"");
print_socket_reply();
return 0;
}
static int
get_layouts()
{
send_message(IPC_TYPE_GET_LAYOUTS, 1, (uint8_t *)"");
print_socket_reply();
return 0;
}
static int
get_dwm_client(Window win)
{
const unsigned char *msg;
size_t msg_size;
yajl_gen gen = yajl_gen_alloc(NULL);
// Message format:
// {
// "client_window_id": "<win>"
// }
// clang-format off
YMAP(
YSTR("client_window_id"); YINT(win);
)
// clang-format on
yajl_gen_get_buf(gen, &msg, &msg_size);
send_message(IPC_TYPE_GET_DWM_CLIENT, msg_size, (uint8_t *)msg);
print_socket_reply();
yajl_gen_free(gen);
return 0;
}
static int
subscribe(const char *event)
{
const unsigned char *msg;
size_t msg_size;
yajl_gen gen = yajl_gen_alloc(NULL);
// Message format:
// {
// "event": "<event>",
// "action": "subscribe"
// }
// clang-format off
YMAP(
YSTR("event"); YSTR(event);
YSTR("action"); YSTR("subscribe");
)
// clang-format on
yajl_gen_get_buf(gen, &msg, &msg_size);
send_message(IPC_TYPE_SUBSCRIBE, msg_size, (uint8_t *)msg);
if (!ignore_reply)
print_socket_reply();
else
flush_socket_reply();
yajl_gen_free(gen);
return 0;
}
static void
usage_error(const char *prog_name, const char *format, ...)
{
va_list args;
va_start(args, format);
fprintf(stderr, "Error: ");
vfprintf(stderr, format, args);
fprintf(stderr, "\nusage: %s <command> [...]\n", prog_name);
fprintf(stderr, "Try '%s help'\n", prog_name);
va_end(args);
exit(1);
}
static void
print_usage(const char *name)
{
printf("usage: %s [options] <command> [...]\n", name);
puts("");
puts("Commands:");
puts(" run_command <name> [args...] Run an IPC command");
puts("");
puts(" get_monitors Get monitor properties");
puts("");
puts(" get_tags Get list of tags");
puts("");
puts(" get_layouts Get list of layouts");
puts("");
puts(" get_dwm_client <window_id> Get dwm client proprties");
puts("");
puts(" subscribe [events...] Subscribe to specified events");
puts(" Options: " IPC_EVENT_TAG_CHANGE ",");
puts(" " IPC_EVENT_LAYOUT_CHANGE ",");
puts(" " IPC_EVENT_CLIENT_FOCUS_CHANGE ",");
puts(" " IPC_EVENT_MONITOR_FOCUS_CHANGE ",");
puts(" " IPC_EVENT_FOCUSED_TITLE_CHANGE ",");
puts(" " IPC_EVENT_FOCUSED_STATE_CHANGE);
puts("");
puts(" help Display this message");
puts("");
puts("Options:");
puts(" --ignore-reply Don't print reply messages from");
puts(" run_command and subscribe.");
puts("");
}
int
main(int argc, char *argv[])
{
const char *prog_name = argv[0];
connect_to_socket();
if (sock_fd == -1) {
fprintf(stderr, "Failed to connect to socket\n");
return 1;
}
int i = 1;
if (i < argc && strcmp(argv[i], "--ignore-reply") == 0) {
ignore_reply = 1;
i++;
}
if (i >= argc) usage_error(prog_name, "Expected an argument, got none");
if (strcmp(argv[i], "help") == 0)
print_usage(prog_name);
else if (strcmp(argv[i], "run_command") == 0) {
if (++i >= argc) usage_error(prog_name, "No command specified");
// Command name
char *command = argv[i];
// Command arguments are everything after command name
char **command_args = argv + ++i;
// Number of command arguments
int command_argc = argc - i;
run_command(command, command_args, command_argc);
} else if (strcmp(argv[i], "get_monitors") == 0) {
get_monitors();
} else if (strcmp(argv[i], "get_tags") == 0) {
get_tags();
} else if (strcmp(argv[i], "get_layouts") == 0) {
get_layouts();
} else if (strcmp(argv[i], "get_dwm_client") == 0) {
if (++i < argc) {
if (is_unsigned_int(argv[i])) {
Window win = atol(argv[i]);
get_dwm_client(win);
} else
usage_error(prog_name, "Expected unsigned integer argument");
} else
usage_error(prog_name, "Expected the window id");
} else if (strcmp(argv[i], "subscribe") == 0) {
if (++i < argc) {
for (int j = i; j < argc; j++) subscribe(argv[j]);
} else
usage_error(prog_name, "Expected event name");
// Keep listening for events forever
while (1) {
print_socket_reply();
}
} else
usage_error(prog_name, "Invalid argument '%s'", argv[i]);
return 0;
}

150
dwm.c
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@ -30,6 +30,7 @@
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/epoll.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
@ -67,9 +68,21 @@ enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms *
enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
typedef struct TagState TagState;
struct TagState {
int selected;
int occupied;
int urgent;
};
typedef struct ClientState ClientState;
struct ClientState {
int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
};
typedef union {
int i;
unsigned int ui;
long i;
unsigned long ui;
float f;
const void *v;
} Arg;
@ -97,6 +110,7 @@ struct Client {
Client *snext;
Monitor *mon;
Window win;
ClientState prevstate;
};
typedef struct {
@ -111,8 +125,10 @@ typedef struct {
void (*arrange)(Monitor *);
} Layout;
struct Monitor {
char ltsymbol[16];
char lastltsymbol[16];
float mfact;
int nmaster;
int num;
@ -122,14 +138,17 @@ struct Monitor {
unsigned int seltags;
unsigned int sellt;
unsigned int tagset[2];
TagState tagstate;
int showbar;
int topbar;
Client *clients;
Client *sel;
Client *lastsel;
Client *stack;
Monitor *next;
Window barwin;
const Layout *lt[2];
const Layout *lastlt;
};
typedef struct {
@ -175,6 +194,7 @@ static long getstate(Window w);
static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
static void grabbuttons(Client *c, int focused);
static void grabkeys(void);
static int handlexevent(struct epoll_event *ev);
static void incnmaster(const Arg *arg);
static void keypress(XEvent *e);
static void killclient(const Arg *arg);
@ -201,8 +221,10 @@ static void setclientstate(Client *c, long state);
static void setfocus(Client *c);
static void setfullscreen(Client *c, int fullscreen);
static void setlayout(const Arg *arg);
static void setlayoutsafe(const Arg *arg);
static void setmfact(const Arg *arg);
static void setup(void);
static void setupepoll(void);
static void seturgent(Client *c, int urg);
static void showhide(Client *c);
static void sigchld(int unused);
@ -261,17 +283,27 @@ static void (*handler[LASTEvent]) (XEvent *) = {
[UnmapNotify] = unmapnotify
};
static Atom wmatom[WMLast], netatom[NetLast];
static int epoll_fd;
static int dpy_fd;
static int running = 1;
static Cur *cursor[CurLast];
static Clr **scheme;
static Display *dpy;
static Drw *drw;
static Monitor *mons, *selmon;
static Monitor *mons, *selmon, *lastselmon;
static Window root, wmcheckwin;
#include "ipc.h"
/* configuration, allows nested code to access above variables */
#include "config.h"
#ifdef VERSION
#include "IPCClient.c"
#include "yajl_dumps.c"
#include "ipc.c"
#endif
/* compile-time check if all tags fit into an unsigned int bit array. */
struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
@ -492,6 +524,12 @@ cleanup(void)
XSync(dpy, False);
XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
ipc_cleanup();
if (close(epoll_fd) < 0) {
fprintf(stderr, "Failed to close epoll file descriptor\n");
}
}
void
@ -967,6 +1005,25 @@ grabkeys(void)
}
}
int
handlexevent(struct epoll_event *ev)
{
if (ev->events & EPOLLIN) {
XEvent ev;
while (running && XPending(dpy)) {
XNextEvent(dpy, &ev);
if (handler[ev.type]) {
handler[ev.type](&ev); /* call handler */
ipc_send_events(mons, &lastselmon, selmon);
}
}
} else if (ev-> events & EPOLLHUP) {
return -1;
}
return 0;
}
void
incnmaster(const Arg *arg)
{
@ -1376,12 +1433,40 @@ restack(Monitor *m)
void
run(void)
{
XEvent ev;
/* main event loop */
int event_count = 0;
const int MAX_EVENTS = 10;
struct epoll_event events[MAX_EVENTS];
XSync(dpy, False);
while (running && !XNextEvent(dpy, &ev))
if (handler[ev.type])
handler[ev.type](&ev); /* call handler */
/* main event loop */
while (running) {
event_count = epoll_wait(epoll_fd, events, MAX_EVENTS, -1);
for (int i = 0; i < event_count; i++) {
int event_fd = events[i].data.fd;
DEBUG("Got event from fd %d\n", event_fd);
if (event_fd == dpy_fd) {
// -1 means EPOLLHUP
if (handlexevent(events + i) == -1)
return;
} else if (event_fd == ipc_get_sock_fd()) {
ipc_handle_socket_epoll_event(events + i);
} else if (ipc_is_client_registered(event_fd)){
if (ipc_handle_client_epoll_event(events + i, mons, &lastselmon, selmon,
tags, LENGTH(tags), layouts, LENGTH(layouts)) < 0) {
fprintf(stderr, "Error handling IPC event on fd %d\n", event_fd);
}
} else {
fprintf(stderr, "Got event from unknown fd %d, ptr %p, u32 %d, u64 %lu",
event_fd, events[i].data.ptr, events[i].data.u32,
events[i].data.u64);
fprintf(stderr, " with events %d\n", events[i].events);
return;
}
}
}
}
void
@ -1515,6 +1600,18 @@ setlayout(const Arg *arg)
drawbar(selmon);
}
void
setlayoutsafe(const Arg *arg)
{
const Layout *ltptr = (Layout *)arg->v;
if (ltptr == 0)
setlayout(arg);
for (int i = 0; i < LENGTH(layouts); i++) {
if (ltptr == &layouts[i])
setlayout(arg);
}
}
/* arg > 1.0 will set mfact absolutely */
void
setmfact(const Arg *arg)
@ -1598,8 +1695,37 @@ setup(void)
XSelectInput(dpy, root, wa.event_mask);
grabkeys();
focus(NULL);
setupepoll();
}
void
setupepoll(void)
{
epoll_fd = epoll_create1(0);
dpy_fd = ConnectionNumber(dpy);
struct epoll_event dpy_event;
// Initialize struct to 0
memset(&dpy_event, 0, sizeof(dpy_event));
DEBUG("Display socket is fd %d\n", dpy_fd);
if (epoll_fd == -1) {
fputs("Failed to create epoll file descriptor", stderr);
}
dpy_event.events = EPOLLIN;
dpy_event.data.fd = dpy_fd;
if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, dpy_fd, &dpy_event)) {
fputs("Failed to add display file descriptor to epoll", stderr);
close(epoll_fd);
exit(1);
}
if (ipc_init(ipcsockpath, epoll_fd, ipccommands, LENGTH(ipccommands)) < 0) {
fputs("Failed to initialize IPC\n", stderr);
}
}
void
seturgent(Client *c, int urg)
@ -2001,10 +2127,18 @@ updatestatus(void)
void
updatetitle(Client *c)
{
char oldname[sizeof(c->name)];
strcpy(oldname, c->name);
if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
if (c->name[0] == '\0') /* hack to mark broken clients */
strcpy(c->name, broken);
for (Monitor *m = mons; m; m = m->next) {
if (m->sel == c && strcmp(oldname, c->name) != 0)
ipc_focused_title_change_event(m->num, c->win, oldname, c->name);
}
}
void

1202
ipc.c Normal file

File diff suppressed because it is too large Load Diff

320
ipc.h Normal file
View File

@ -0,0 +1,320 @@
#ifndef IPC_H_
#define IPC_H_
#include <stdint.h>
#include <sys/epoll.h>
#include <yajl/yajl_gen.h>
#include "IPCClient.h"
// clang-format off
#define IPC_MAGIC "DWM-IPC"
#define IPC_MAGIC_ARR { 'D', 'W', 'M', '-', 'I', 'P', 'C'}
#define IPC_MAGIC_LEN 7 // Not including null char
#define IPCCOMMAND(FUNC, ARGC, TYPES) \
{ #FUNC, {FUNC }, ARGC, (ArgType[ARGC])TYPES }
// clang-format on
typedef enum IPCMessageType {
IPC_TYPE_RUN_COMMAND = 0,
IPC_TYPE_GET_MONITORS = 1,
IPC_TYPE_GET_TAGS = 2,
IPC_TYPE_GET_LAYOUTS = 3,
IPC_TYPE_GET_DWM_CLIENT = 4,
IPC_TYPE_SUBSCRIBE = 5,
IPC_TYPE_EVENT = 6
} IPCMessageType;
typedef enum IPCEvent {
IPC_EVENT_TAG_CHANGE = 1 << 0,
IPC_EVENT_CLIENT_FOCUS_CHANGE = 1 << 1,
IPC_EVENT_LAYOUT_CHANGE = 1 << 2,
IPC_EVENT_MONITOR_FOCUS_CHANGE = 1 << 3,
IPC_EVENT_FOCUSED_TITLE_CHANGE = 1 << 4,
IPC_EVENT_FOCUSED_STATE_CHANGE = 1 << 5
} IPCEvent;
typedef enum IPCSubscriptionAction {
IPC_ACTION_UNSUBSCRIBE = 0,
IPC_ACTION_SUBSCRIBE = 1
} IPCSubscriptionAction;
/**
* Every IPC packet starts with this structure
*/
typedef struct dwm_ipc_header {
uint8_t magic[IPC_MAGIC_LEN];
uint32_t size;
uint8_t type;
} __attribute((packed)) dwm_ipc_header_t;
typedef enum ArgType {
ARG_TYPE_NONE = 0,
ARG_TYPE_UINT = 1,
ARG_TYPE_SINT = 2,
ARG_TYPE_FLOAT = 3,
ARG_TYPE_PTR = 4,
ARG_TYPE_STR = 5
} ArgType;
/**
* An IPCCommand function can have either of these function signatures
*/
typedef union ArgFunction {
void (*single_param)(const Arg *);
void (*array_param)(const Arg *, int);
} ArgFunction;
typedef struct IPCCommand {
char *name;
ArgFunction func;
unsigned int argc;
ArgType *arg_types;
} IPCCommand;
typedef struct IPCParsedCommand {
char *name;
Arg *args;
ArgType *arg_types;
unsigned int argc;
} IPCParsedCommand;
/**
* Initialize the IPC socket and the IPC module
*
* @param socket_path Path to create the socket at
* @param epoll_fd File descriptor for epoll
* @param commands Address of IPCCommands array defined in config.h
* @param commands_len Length of commands[] array
*
* @return int The file descriptor of the socket if it was successfully created,
* -1 otherwise
*/
int ipc_init(const char *socket_path, const int p_epoll_fd,
IPCCommand commands[], const int commands_len);
/**
* Uninitialize the socket and module. Free allocated memory and restore static
* variables to their state before ipc_init
*/
void ipc_cleanup();
/**
* Get the file descriptor of the IPC socket
*
* @return int File descriptor of IPC socket, -1 if socket not created.
*/
int ipc_get_sock_fd();
/**
* Get address to IPCClient with specified file descriptor
*
* @param fd File descriptor of IPC Client
*
* @return Address to IPCClient with specified file descriptor, -1 otherwise
*/
IPCClient *ipc_get_client(int fd);
/**
* Check if an IPC client exists with the specified file descriptor
*
* @param fd File descriptor
*
* @return int 1 if client exists, 0 otherwise
*/
int ipc_is_client_registered(int fd);
/**
* Disconnect an IPCClient from the socket and remove the client from the list
* of known connected clients
*
* @param c Address of IPCClient
*
* @return 0 if the client's file descriptor was closed successfully, the
* result of executing close() on the file descriptor otherwise.
*/
int ipc_drop_client(IPCClient *c);
/**
* Accept an IPC Client requesting to connect to the socket and add it to the
* list of clients
*
* @return File descriptor of new client, -1 on error
*/
int ipc_accept_client();
/**
* Read an incoming message from an accepted IPC client
*
* @param c Address of IPCClient
* @param msg_type Address to IPCMessageType variable which will be assigned
* the message type of the received message
* @param msg_size Address to uint32_t variable which will be assigned the size
* of the received message
* @param msg Address to char* variable which will be assigned the address of
* the received message. This must be freed using free().
*
* @return 0 on success, -1 on error reading message, -2 if reading the message
* resulted in EAGAIN, EINTR, or EWOULDBLOCK.
*/
int ipc_read_client(IPCClient *c, IPCMessageType *msg_type, uint32_t *msg_size,
char **msg);
/**
* Write any pending buffer of the client to the client's socket
*
* @param c Client whose buffer to write
*
* @return Number of bytes written >= 0, -1 otherwise. errno will still be set
* from the write operation.
*/
ssize_t ipc_write_client(IPCClient *c);
/**
* Prepare a message in the specified client's buffer.
*
* @param c Client to prepare message for
* @param msg_type Type of message to prepare
* @param msg_size Size of the message in bytes. Should not exceed
* MAX_MESSAGE_SIZE
* @param msg Message to prepare (not including header). This pointer can be
* freed after the function invocation.
*/
void ipc_prepare_send_message(IPCClient *c, const IPCMessageType msg_type,
const uint32_t msg_size, const char *msg);
/**
* Prepare an error message in the specified client's buffer
*
* @param c Client to prepare message for
* @param msg_type Type of message
* @param format Format string following vsprintf
* @param ... Arguments for format string
*/
void ipc_prepare_reply_failure(IPCClient *c, IPCMessageType msg_type,
const char *format, ...);
/**
* Prepare a success message in the specified client's buffer
*
* @param c Client to prepare message for
* @param msg_type Type of message
*/
void ipc_prepare_reply_success(IPCClient *c, IPCMessageType msg_type);
/**
* Send a tag_change_event to all subscribers. Should be called only when there
* has been a tag state change.
*
* @param mon_num The index of the monitor (Monitor.num property)
* @param old_state The old tag state
* @param new_state The new (now current) tag state
*/
void ipc_tag_change_event(const int mon_num, TagState old_state,
TagState new_state);
/**
* Send a client_focus_change_event to all subscribers. Should be called only
* when the client focus changes.
*
* @param mon_num The index of the monitor (Monitor.num property)
* @param old_client The old DWM client selection (Monitor.oldsel)
* @param new_client The new (now current) DWM client selection
*/
void ipc_client_focus_change_event(const int mon_num, Client *old_client,
Client *new_client);
/**
* Send a layout_change_event to all subscribers. Should be called only
* when there has been a layout change.
*
* @param mon_num The index of the monitor (Monitor.num property)
* @param old_symbol The old layout symbol
* @param old_layout Address to the old Layout
* @param new_symbol The new (now current) layout symbol
* @param new_layout Address to the new Layout
*/
void ipc_layout_change_event(const int mon_num, const char *old_symbol,
const Layout *old_layout, const char *new_symbol,
const Layout *new_layout);
/**
* Send a monitor_focus_change_event to all subscribers. Should be called only
* when the monitor focus changes.
*
* @param last_mon_num The index of the previously selected monitor
* @param new_mon_num The index of the newly selected monitor
*/
void ipc_monitor_focus_change_event(const int last_mon_num,
const int new_mon_num);
/**
* Send a focused_title_change_event to all subscribers. Should only be called
* if a selected client has a title change.
*
* @param mon_num Index of the client's monitor
* @param client_id Window XID of client
* @param old_name Old name of the client window
* @param new_name New name of the client window
*/
void ipc_focused_title_change_event(const int mon_num, const Window client_id,
const char *old_name, const char *new_name);
/**
* Send a focused_state_change_event to all subscribers. Should only be called
* if a selected client has a state change.
*
* @param mon_num Index of the client's monitor
* @param client_id Window XID of client
* @param old_state Old state of the client
* @param new_state New state of the client
*/
void ipc_focused_state_change_event(const int mon_num, const Window client_id,
const ClientState *old_state,
const ClientState *new_state);
/**
* Check to see if an event has occured and call the *_change_event functions
* accordingly
*
* @param mons Address of Monitor pointing to start of linked list
* @param lastselmon Address of pointer to previously selected monitor
* @param selmon Address of selected Monitor
*/
void ipc_send_events(Monitor *mons, Monitor **lastselmon, Monitor *selmon);
/**
* Handle an epoll event caused by a registered IPC client. Read, process, and
* handle any received messages from clients. Write pending buffer to client if
* the client is ready to receive messages. Drop clients that have sent an
* EPOLLHUP.
*
* @param ev Associated epoll event returned by epoll_wait
* @param mons Address of Monitor pointing to start of linked list
* @param selmon Address of selected Monitor
* @param lastselmon Address of pointer to previously selected monitor
* @param tags Array of tag names
* @param tags_len Length of tags array
* @param layouts Array of available layouts
* @param layouts_len Length of layouts array
*
* @return 0 if event was successfully handled, -1 on any error receiving
* or handling incoming messages or unhandled epoll event.
*/
int ipc_handle_client_epoll_event(struct epoll_event *ev, Monitor *mons,
Monitor **lastselmon, Monitor *selmon,
const char *tags[], const int tags_len,
const Layout *layouts, const int layouts_len);
/**
* Handle an epoll event caused by the IPC socket. This function only handles an
* EPOLLIN event indicating a new client requesting to connect to the socket.
*
* @param ev Associated epoll event returned by epoll_wait
*
* @return 0, if the event was successfully handled, -1 if not an EPOLLIN event
* or if a new IPC client connection request could not be accepted.
*/
int ipc_handle_socket_epoll_event(struct epoll_event *ev);
#endif /* IPC_H_ */

135
util.c
View File

@ -3,6 +3,8 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/stat.h>
#include "util.h"
@ -33,3 +35,136 @@ die(const char *fmt, ...) {
exit(1);
}
int
normalizepath(const char *path, char **normal)
{
size_t len = strlen(path);
*normal = (char *)malloc((len + 1) * sizeof(char));
const char *walk = path;
const char *match;
size_t newlen = 0;
while ((match = strchr(walk, '/'))) {
// Copy everything between match and walk
strncpy(*normal + newlen, walk, match - walk);
newlen += match - walk;
walk += match - walk;
// Skip all repeating slashes
while (*walk == '/')
walk++;
// If not last character in path
if (walk != path + len)
(*normal)[newlen++] = '/';
}
(*normal)[newlen++] = '\0';
// Copy remaining path
strcat(*normal, walk);
newlen += strlen(walk);
*normal = (char *)realloc(*normal, newlen * sizeof(char));
return 0;
}
int
parentdir(const char *path, char **parent)
{
char *normal;
char *walk;
normalizepath(path, &normal);
// Pointer to last '/'
if (!(walk = strrchr(normal, '/'))) {
free(normal);
return -1;
}
// Get path up to last '/'
size_t len = walk - normal;
*parent = (char *)malloc((len + 1) * sizeof(char));
// Copy path up to last '/'
strncpy(*parent, normal, len);
// Add null char
(*parent)[len] = '\0';
free(normal);
return 0;
}
int
mkdirp(const char *path)
{
char *normal;
char *walk;
size_t normallen;
normalizepath(path, &normal);
normallen = strlen(normal);
walk = normal;
while (walk < normal + normallen + 1) {
// Get length from walk to next /
size_t n = strcspn(walk, "/");
// Skip path /
if (n == 0) {
walk++;
continue;
}
// Length of current path segment
size_t curpathlen = walk - normal + n;
char curpath[curpathlen + 1];
struct stat s;
// Copy path segment to stat
strncpy(curpath, normal, curpathlen);
strcpy(curpath + curpathlen, "");
int res = stat(curpath, &s);
if (res < 0) {
if (errno == ENOENT) {
DEBUG("Making directory %s\n", curpath);
if (mkdir(curpath, 0700) < 0) {
fprintf(stderr, "Failed to make directory %s\n", curpath);
perror("");
free(normal);
return -1;
}
} else {
fprintf(stderr, "Error statting directory %s\n", curpath);
perror("");
free(normal);
return -1;
}
}
// Continue to next path segment
walk += n;
}
free(normal);
return 0;
}
int
nullterminate(char **str, size_t *len)
{
if ((*str)[*len - 1] == '\0')
return 0;
(*len)++;
*str = (char*)realloc(*str, *len * sizeof(char));
(*str)[*len - 1] = '\0';
return 0;
}

10
util.h
View File

@ -4,5 +4,15 @@
#define MIN(A, B) ((A) < (B) ? (A) : (B))
#define BETWEEN(X, A, B) ((A) <= (X) && (X) <= (B))
#ifdef _DEBUG
#define DEBUG(...) fprintf(stderr, __VA_ARGS__)
#else
#define DEBUG(...)
#endif
void die(const char *fmt, ...);
void *ecalloc(size_t nmemb, size_t size);
int normalizepath(const char *path, char **normal);
int mkdirp(const char *path);
int parentdir(const char *path, char **parent);
int nullterminate(char **str, size_t *len);

351
yajl_dumps.c Normal file
View File

@ -0,0 +1,351 @@
#include "yajl_dumps.h"
#include <stdint.h>
int
dump_tag(yajl_gen gen, const char *name, const int tag_mask)
{
// clang-format off
YMAP(
YSTR("bit_mask"); YINT(tag_mask);
YSTR("name"); YSTR(name);
)
// clang-format on
return 0;
}
int
dump_tags(yajl_gen gen, const char *tags[], int tags_len)
{
// clang-format off
YARR(
for (int i = 0; i < tags_len; i++)
dump_tag(gen, tags[i], 1 << i);
)
// clang-format on
return 0;
}
int
dump_client(yajl_gen gen, Client *c)
{
// clang-format off
YMAP(
YSTR("name"); YSTR(c->name);
YSTR("tags"); YINT(c->tags);
YSTR("window_id"); YINT(c->win);
YSTR("monitor_number"); YINT(c->mon->num);
YSTR("geometry"); YMAP(
YSTR("current"); YMAP (
YSTR("x"); YINT(c->x);
YSTR("y"); YINT(c->y);
YSTR("width"); YINT(c->w);
YSTR("height"); YINT(c->h);
)
YSTR("old"); YMAP(
YSTR("x"); YINT(c->oldx);
YSTR("y"); YINT(c->oldy);
YSTR("width"); YINT(c->oldw);
YSTR("height"); YINT(c->oldh);
)
)
YSTR("size_hints"); YMAP(
YSTR("base"); YMAP(
YSTR("width"); YINT(c->basew);
YSTR("height"); YINT(c->baseh);
)
YSTR("step"); YMAP(
YSTR("width"); YINT(c->incw);
YSTR("height"); YINT(c->inch);
)
YSTR("max"); YMAP(
YSTR("width"); YINT(c->maxw);
YSTR("height"); YINT(c->maxh);
)
YSTR("min"); YMAP(
YSTR("width"); YINT(c->minw);
YSTR("height"); YINT(c->minh);
)
YSTR("aspect_ratio"); YMAP(
YSTR("min"); YDOUBLE(c->mina);
YSTR("max"); YDOUBLE(c->maxa);
)
)
YSTR("border_width"); YMAP(
YSTR("current"); YINT(c->bw);
YSTR("old"); YINT(c->oldbw);
)
YSTR("states"); YMAP(
YSTR("is_fixed"); YBOOL(c->isfixed);
YSTR("is_floating"); YBOOL(c->isfloating);
YSTR("is_urgent"); YBOOL(c->isurgent);
YSTR("never_focus"); YBOOL(c->neverfocus);
YSTR("old_state"); YBOOL(c->oldstate);
YSTR("is_fullscreen"); YBOOL(c->isfullscreen);
)
)
// clang-format on
return 0;
}
int
dump_monitor(yajl_gen gen, Monitor *mon, int is_selected)
{
// clang-format off
YMAP(
YSTR("master_factor"); YDOUBLE(mon->mfact);
YSTR("num_master"); YINT(mon->nmaster);
YSTR("num"); YINT(mon->num);
YSTR("is_selected"); YBOOL(is_selected);
YSTR("monitor_geometry"); YMAP(
YSTR("x"); YINT(mon->mx);
YSTR("y"); YINT(mon->my);
YSTR("width"); YINT(mon->mw);
YSTR("height"); YINT(mon->mh);
)
YSTR("window_geometry"); YMAP(
YSTR("x"); YINT(mon->wx);
YSTR("y"); YINT(mon->wy);
YSTR("width"); YINT(mon->ww);
YSTR("height"); YINT(mon->wh);
)
YSTR("tagset"); YMAP(
YSTR("current"); YINT(mon->tagset[mon->seltags]);
YSTR("old"); YINT(mon->tagset[mon->seltags ^ 1]);
)
YSTR("tag_state"); dump_tag_state(gen, mon->tagstate);
YSTR("clients"); YMAP(
YSTR("selected"); YINT(mon->sel ? mon->sel->win : 0);
YSTR("stack"); YARR(
for (Client* c = mon->stack; c; c = c->snext)
YINT(c->win);
)
YSTR("all"); YARR(
for (Client* c = mon->clients; c; c = c->next)
YINT(c->win);
)
)
YSTR("layout"); YMAP(
YSTR("symbol"); YMAP(
YSTR("current"); YSTR(mon->ltsymbol);
YSTR("old"); YSTR(mon->lastltsymbol);
)
YSTR("address"); YMAP(
YSTR("current"); YINT((uintptr_t)mon->lt[mon->sellt]);
YSTR("old"); YINT((uintptr_t)mon->lt[mon->sellt ^ 1]);
)
)
YSTR("bar"); YMAP(
YSTR("y"); YINT(mon->by);
YSTR("is_shown"); YBOOL(mon->showbar);
YSTR("is_top"); YBOOL(mon->topbar);
YSTR("window_id"); YINT(mon->barwin);
)
)
// clang-format on
return 0;
}
int
dump_monitors(yajl_gen gen, Monitor *mons, Monitor *selmon)
{
// clang-format off
YARR(
for (Monitor *mon = mons; mon; mon = mon->next) {
if (mon == selmon)
dump_monitor(gen, mon, 1);
else
dump_monitor(gen, mon, 0);
}
)
// clang-format on
return 0;
}
int
dump_layouts(yajl_gen gen, const Layout layouts[], const int layouts_len)
{
// clang-format off
YARR(
for (int i = 0; i < layouts_len; i++) {
YMAP(
// Check for a NULL pointer. The cycle layouts patch adds an entry at
// the end of the layouts array with a NULL pointer for the symbol
YSTR("symbol"); YSTR((layouts[i].symbol ? layouts[i].symbol : ""));
YSTR("address"); YINT((uintptr_t)(layouts + i));
)
}
)
// clang-format on
return 0;
}
int
dump_tag_state(yajl_gen gen, TagState state)
{
// clang-format off
YMAP(
YSTR("selected"); YINT(state.selected);
YSTR("occupied"); YINT(state.occupied);
YSTR("urgent"); YINT(state.urgent);
)
// clang-format on
return 0;
}
int
dump_tag_event(yajl_gen gen, int mon_num, TagState old_state,
TagState new_state)
{
// clang-format off
YMAP(
YSTR("tag_change_event"); YMAP(
YSTR("monitor_number"); YINT(mon_num);
YSTR("old_state"); dump_tag_state(gen, old_state);
YSTR("new_state"); dump_tag_state(gen, new_state);
)
)
// clang-format on
return 0;
}
int
dump_client_focus_change_event(yajl_gen gen, Client *old_client,
Client *new_client, int mon_num)
{
// clang-format off
YMAP(
YSTR("client_focus_change_event"); YMAP(
YSTR("monitor_number"); YINT(mon_num);
YSTR("old_win_id"); old_client == NULL ? YNULL() : YINT(old_client->win);
YSTR("new_win_id"); new_client == NULL ? YNULL() : YINT(new_client->win);
)
)
// clang-format on
return 0;
}
int
dump_layout_change_event(yajl_gen gen, const int mon_num,
const char *old_symbol, const Layout *old_layout,
const char *new_symbol, const Layout *new_layout)
{
// clang-format off
YMAP(
YSTR("layout_change_event"); YMAP(
YSTR("monitor_number"); YINT(mon_num);
YSTR("old_symbol"); YSTR(old_symbol);
YSTR("old_address"); YINT((uintptr_t)old_layout);
YSTR("new_symbol"); YSTR(new_symbol);
YSTR("new_address"); YINT((uintptr_t)new_layout);
)
)
// clang-format on
return 0;
}
int
dump_monitor_focus_change_event(yajl_gen gen, const int last_mon_num,
const int new_mon_num)
{
// clang-format off
YMAP(
YSTR("monitor_focus_change_event"); YMAP(
YSTR("old_monitor_number"); YINT(last_mon_num);
YSTR("new_monitor_number"); YINT(new_mon_num);
)
)
// clang-format on
return 0;
}
int
dump_focused_title_change_event(yajl_gen gen, const int mon_num,
const Window client_id, const char *old_name,
const char *new_name)
{
// clang-format off
YMAP(
YSTR("focused_title_change_event"); YMAP(
YSTR("monitor_number"); YINT(mon_num);
YSTR("client_window_id"); YINT(client_id);
YSTR("old_name"); YSTR(old_name);
YSTR("new_name"); YSTR(new_name);
)
)
// clang-format on
return 0;
}
int
dump_client_state(yajl_gen gen, const ClientState *state)
{
// clang-format off
YMAP(
YSTR("old_state"); YBOOL(state->oldstate);
YSTR("is_fixed"); YBOOL(state->isfixed);
YSTR("is_floating"); YBOOL(state->isfloating);
YSTR("is_fullscreen"); YBOOL(state->isfullscreen);
YSTR("is_urgent"); YBOOL(state->isurgent);
YSTR("never_focus"); YBOOL(state->neverfocus);
)
// clang-format on
return 0;
}
int
dump_focused_state_change_event(yajl_gen gen, const int mon_num,
const Window client_id,
const ClientState *old_state,
const ClientState *new_state)
{
// clang-format off
YMAP(
YSTR("focused_state_change_event"); YMAP(
YSTR("monitor_number"); YINT(mon_num);
YSTR("client_window_id"); YINT(client_id);
YSTR("old_state"); dump_client_state(gen, old_state);
YSTR("new_state"); dump_client_state(gen, new_state);
)
)
// clang-format on
return 0;
}
int
dump_error_message(yajl_gen gen, const char *reason)
{
// clang-format off
YMAP(
YSTR("result"); YSTR("error");
YSTR("reason"); YSTR(reason);
)
// clang-format on
return 0;
}

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yajl_dumps.h Normal file
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#ifndef YAJL_DUMPS_H_
#define YAJL_DUMPS_H_
#include <string.h>
#include <yajl/yajl_gen.h>
#define YSTR(str) yajl_gen_string(gen, (unsigned char *)str, strlen(str))
#define YINT(num) yajl_gen_integer(gen, num)
#define YDOUBLE(num) yajl_gen_double(gen, num)
#define YBOOL(v) yajl_gen_bool(gen, v)
#define YNULL() yajl_gen_null(gen)
#define YARR(body) \
{ \
yajl_gen_array_open(gen); \
body; \
yajl_gen_array_close(gen); \
}
#define YMAP(body) \
{ \
yajl_gen_map_open(gen); \
body; \
yajl_gen_map_close(gen); \
}
int dump_tag(yajl_gen gen, const char *name, const int tag_mask);
int dump_tags(yajl_gen gen, const char *tags[], int tags_len);
int dump_client(yajl_gen gen, Client *c);
int dump_monitor(yajl_gen gen, Monitor *mon, int is_selected);
int dump_monitors(yajl_gen gen, Monitor *mons, Monitor *selmon);
int dump_layouts(yajl_gen gen, const Layout layouts[], const int layouts_len);
int dump_tag_state(yajl_gen gen, TagState state);
int dump_tag_event(yajl_gen gen, int mon_num, TagState old_state,
TagState new_state);
int dump_client_focus_change_event(yajl_gen gen, Client *old_client,
Client *new_client, int mon_num);
int dump_layout_change_event(yajl_gen gen, const int mon_num,
const char *old_symbol, const Layout *old_layout,
const char *new_symbol, const Layout *new_layout);
int dump_monitor_focus_change_event(yajl_gen gen, const int last_mon_num,
const int new_mon_num);
int dump_focused_title_change_event(yajl_gen gen, const int mon_num,
const Window client_id,
const char *old_name, const char *new_name);
int dump_client_state(yajl_gen gen, const ClientState *state);
int dump_focused_state_change_event(yajl_gen gen, const int mon_num,
const Window client_id,
const ClientState *old_state,
const ClientState *new_state);
int dump_error_message(yajl_gen gen, const char *reason);
#endif // YAJL_DUMPS_H_