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Add i3-msg, a sample implementation and hopefully useful utility

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This commit is contained in:
Michael Stapelberg 2009-07-28 21:26:36 +02:00
parent 45c3341e09
commit ec9b58ada9
4 changed files with 210 additions and 68 deletions
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75
Makefile
View File

@ -1,72 +1,6 @@
UNAME=$(shell uname)
DEBUG=1
INSTALL=install
GIT_VERSION=$(shell git describe --tags --always)
VERSION=$(shell git describe --tags --abbrev=0)
TOPDIR=$(shell pwd)
CFLAGS += -std=c99
CFLAGS += -pipe
CFLAGS += -Wall
CFLAGS += -Wunused
CFLAGS += -Iinclude
CFLAGS += -I/usr/local/include
CFLAGS += -DI3_VERSION=\"${GIT_VERSION}\"
# Check if pkg-config is installed, because without pkg-config, the following
# check for the version of libxcb cannot be done.
ifeq ($(shell which pkg-config 2>/dev/null 1>/dev/null || echo 1),1)
$(error "pkg-config was not found")
endif
ifeq ($(shell pkg-config --exists xcb-keysyms || echo 1),1)
$(error "pkg-config could not find xcb-keysyms.pc")
endif
ifeq ($(shell pkg-config --exact-version=0.3.3 xcb-keysyms && echo 1),1)
# xcb-keysyms fixed API from 0.3.3 to 0.3.4, so for some months, we will
# have this here. Distributions should upgrade their libxcb in the meantime.
CFLAGS += -DOLD_XCB_KEYSYMS_API
endif
LDFLAGS += -lm
LDFLAGS += -lxcb-event
LDFLAGS += -lxcb-property
LDFLAGS += -lxcb-keysyms
LDFLAGS += -lxcb-atom
LDFLAGS += -lxcb-aux
LDFLAGS += -lxcb-icccm
LDFLAGS += -lxcb-xinerama
LDFLAGS += -lX11
LDFLAGS += -lev
LDFLAGS += -L/usr/local/lib -L/usr/pkg/lib
ifeq ($(UNAME),NetBSD)
# We need -idirafter instead of -I to prefer the system’s iconv over GNU libiconv
CFLAGS += -idirafter /usr/pkg/include
LDFLAGS += -Wl,-rpath,/usr/local/lib -Wl,-rpath,/usr/pkg/lib
endif
ifeq ($(UNAME),FreeBSD)
LDFLAGS += -liconv
endif
ifeq ($(UNAME),Linux)
CFLAGS += -D_GNU_SOURCE
endif
ifeq ($(DEBUG),1)
# Extended debugging flags, macros shall be available in gcc
CFLAGS += -gdwarf-2
CFLAGS += -g3
else
CFLAGS += -O2
endif
# Don’t print command lines which are run
.SILENT:
# Always remake the following targets
.PHONY: install clean dist distclean
include $(TOPDIR)/common.mk
# Depend on the object files of all source-files in src/*.c and on all header files
FILES=$(patsubst %.c,%.o,$(wildcard src/*.c))
@ -80,6 +14,9 @@ src/%.o: src/%.c ${HEADERS}
all: ${FILES}
echo "LINK i3"
$(CC) -o i3 ${FILES} $(LDFLAGS)
echo ""
echo "SUBDIR i3-msg"
$(MAKE) TOPDIR=$(TOPDIR) -C i3-msg
install: all
echo "INSTALL"
@ -89,6 +26,7 @@ install: all
$(INSTALL) -m 0755 i3 $(DESTDIR)/usr/bin/
test -e $(DESTDIR)/etc/i3/config || $(INSTALL) -m 0644 i3.config $(DESTDIR)/etc/i3/config
$(INSTALL) -m 0644 i3.desktop $(DESTDIR)/usr/share/xsessions/
$(MAKE) TOPDIR=$(TOPDIR) -C i3-msg
dist: clean
[ ! -d i3-${VERSION} ] || rm -rf i3-${VERSION}
@ -108,6 +46,7 @@ clean:
rm -f src/*.o
$(MAKE) -C docs clean
$(MAKE) -C man clean
$(MAKE) TOPDIR=$(TOPDIR) -C i3-msg clean
distclean: clean
rm -f i3

70
common.mk Normal file
View File

@ -0,0 +1,70 @@
UNAME=$(shell uname)
DEBUG=1
INSTALL=install
GIT_VERSION=$(shell git describe --tags --always)
VERSION=$(shell git describe --tags --abbrev=0)
CFLAGS += -std=c99
CFLAGS += -pipe
CFLAGS += -Wall
CFLAGS += -Wunused
CFLAGS += -Iinclude
CFLAGS += -I/usr/local/include
CFLAGS += -DI3_VERSION=\"${GIT_VERSION}\"
# Check if pkg-config is installed, because without pkg-config, the following
# check for the version of libxcb cannot be done.
ifeq ($(shell which pkg-config 2>/dev/null 1>/dev/null || echo 1),1)
$(error "pkg-config was not found")
endif
ifeq ($(shell pkg-config --exists xcb-keysyms || echo 1),1)
$(error "pkg-config could not find xcb-keysyms.pc")
endif
ifeq ($(shell pkg-config --exact-version=0.3.3 xcb-keysyms && echo 1),1)
# xcb-keysyms fixed API from 0.3.3 to 0.3.4, so for some months, we will
# have this here. Distributions should upgrade their libxcb in the meantime.
CFLAGS += -DOLD_XCB_KEYSYMS_API
endif
LDFLAGS += -lm
LDFLAGS += -lxcb-event
LDFLAGS += -lxcb-property
LDFLAGS += -lxcb-keysyms
LDFLAGS += -lxcb-atom
LDFLAGS += -lxcb-aux
LDFLAGS += -lxcb-icccm
LDFLAGS += -lxcb-xinerama
LDFLAGS += -lX11
LDFLAGS += -lev
LDFLAGS += -L/usr/local/lib -L/usr/pkg/lib
ifeq ($(UNAME),NetBSD)
# We need -idirafter instead of -I to prefer the system’s iconv over GNU libiconv
CFLAGS += -idirafter /usr/pkg/include
LDFLAGS += -Wl,-rpath,/usr/local/lib -Wl,-rpath,/usr/pkg/lib
endif
ifeq ($(UNAME),FreeBSD)
LDFLAGS += -liconv
endif
ifeq ($(UNAME),Linux)
CFLAGS += -D_GNU_SOURCE
endif
ifeq ($(DEBUG),1)
# Extended debugging flags, macros shall be available in gcc
CFLAGS += -gdwarf-2
CFLAGS += -g3
else
CFLAGS += -O2
endif
# Don’t print command lines which are run
.SILENT:
# Always remake the following targets
.PHONY: install clean dist distclean

28
i3-msg/Makefile Normal file
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@ -0,0 +1,28 @@
# Default value so one can compile i3-msg standalone
TOPDIR=..
include $(TOPDIR)/common.mk
# Depend on the object files of all source-files in src/*.c and on all header files
FILES=$(patsubst %.c,%.o,$(wildcard *.c))
HEADERS=$(wildcard *.h)
# Depend on the specific file (.c for each .o) and on all headers
%.o: %.c ${HEADERS}
echo "CC $<"
$(CC) $(CFLAGS) -c -o $@ $<
all: ${FILES}
echo "LINK i3-msg"
$(CC) -o i3-msg ${FILES} $(LDFLAGS)
install: all
echo "INSTALL"
$(INSTALL) -d -m 0755 $(DESTDIR)/usr/bin
$(INSTALL) -m 0755 i3-msg $(DESTDIR)/usr/bin/
clean:
rm -f *.o
distclean: clean
rm -f i3-msg

105
i3-msg/main.c Normal file
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@ -0,0 +1,105 @@
/*
* vim:ts=8:expandtab
*
* i3 - an improved dynamic tiling window manager
*
* © 2009 Michael Stapelberg and contributors
*
* See file LICENSE for license information.
*
* i3-msg/main.c: Utility which sends messages to a running i3-instance using
* IPC via UNIX domain sockets.
*
* This serves as an example for how to send your own messages to i3.
* Additionally, it’s even useful sometimes :-).
*
*/
#include <ev.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <err.h>
#include <stdint.h>
#include <getopt.h>
static void ipc_send_message(int sockfd, uint32_t message_size,
uint32_t message_type, uint8_t *payload) {
int buffer_size = strlen("i3-ipc") + sizeof(uint32_t) + sizeof(uint32_t) + message_size;
char msg[buffer_size];
char *walk = msg;
strcpy(walk, "i3-ipc");
walk += strlen("i3-ipc");
memcpy(walk, &message_size, sizeof(uint32_t));
walk += sizeof(uint32_t);
memcpy(walk, &message_type, sizeof(uint32_t));
walk += sizeof(uint32_t);
memcpy(walk, payload, message_size);
int sent_bytes = 0;
int bytes_to_go = buffer_size;
while (sent_bytes < bytes_to_go) {
int n = write(sockfd, msg + sent_bytes, bytes_to_go);
if (n == -1)
err(EXIT_FAILURE, "write() failed");
sent_bytes += n;
bytes_to_go -= n;
}
}
int main(int argc, char *argv[]) {
char *socket_path = "/tmp/i3-ipc.sock";
int o, option_index = 0;
static struct option long_options[] = {
{"socket", required_argument, 0, 's'},
{"type", required_argument, 0, 't'},
{"version", no_argument, 0, 'v'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0}
};
char *options_string = "s:t:vh";
while ((o = getopt_long(argc, argv, options_string, long_options, &option_index)) != -1) {
if (o == 's') {
socket_path = strdup(optarg);
break;
} else if (o == 't') {
printf("currently only commands are implemented\n");
} else if (o == 'v') {
printf("i3-msg " I3_VERSION);
return 0;
} else if (o == 'h') {
printf("i3-msg " I3_VERSION);
printf("i3-msg [-s <socket>] [-t <type>] <message>\n");
return 0;
}
}
if (optind >= argc) {
fprintf(stderr, "Error: missing message\n");
fprintf(stderr, "i3-msg [-s <socket>] [-t <type>] <message>\n");
return 1;
}
int sockfd = socket(AF_LOCAL, SOCK_STREAM, 0);
struct sockaddr_un addr;
memset(&addr, 0, sizeof(struct sockaddr_un));
addr.sun_family = AF_LOCAL;
strcpy(addr.sun_path, socket_path);
if (connect(sockfd, &addr, sizeof(struct sockaddr_un)) < 0)
err(-1, "Could not connect to i3");
ipc_send_message(sockfd, strlen(argv[optind]), 0, (uint8_t*)argv[optind]);
close(sockfd);
return 0;
}