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-rw-r--r--src/modules/gconf/module-gconf.c218
1 files changed, 67 insertions, 151 deletions
diff --git a/src/modules/gconf/module-gconf.c b/src/modules/gconf/module-gconf.c
index d9f649fd..a2a43278 100644
--- a/src/modules/gconf/module-gconf.c
+++ b/src/modules/gconf/module-gconf.c
@@ -1,18 +1,18 @@
-/* $Id$ */
-
/***
This file is part of PulseAudio.
-
+
+ Copyright 2006 Lennart Poettering
+
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
-
+
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
-
+
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
@@ -23,7 +23,6 @@
#include <config.h>
#endif
-#include <assert.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
@@ -33,28 +32,22 @@
#include <sys/wait.h>
#include <fcntl.h>
-#ifdef HAVE_SYS_PRCTL_H
-#include <sys/prctl.h>
-#endif
-#ifdef HAVE_SYS_RESOURCE_H
-#include <sys/resource.h>
-#endif
-
+#include <pulse/xmalloc.h>
#include <pulsecore/module.h>
#include <pulsecore/core.h>
#include <pulsecore/llist.h>
#include <pulsecore/core-util.h>
#include <pulsecore/log.h>
#include <pulse/mainloop-api.h>
-#include <pulse/xmalloc.h>
#include <pulsecore/core-error.h>
+#include <pulsecore/start-child.h>
#include "module-gconf-symdef.h"
-PA_MODULE_AUTHOR("Lennart Poettering")
-PA_MODULE_DESCRIPTION("GConf Adapter")
-PA_MODULE_VERSION(PACKAGE_VERSION)
-PA_MODULE_USAGE("")
+PA_MODULE_AUTHOR("Lennart Poettering");
+PA_MODULE_DESCRIPTION("GConf Adapter");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(TRUE);
#define MAX_MODULES 10
#define BUF_MAX 2048
@@ -78,7 +71,7 @@ struct module_info {
struct userdata {
pa_core *core;
pa_module *module;
-
+
pa_hashmap *module_infos;
pid_t pid;
@@ -93,7 +86,7 @@ struct userdata {
static int fill_buf(struct userdata *u) {
ssize_t r;
- assert(u);
+ pa_assert(u);
if (u->buf_fill >= BUF_MAX) {
pa_log("read buffer overflow");
@@ -109,25 +102,25 @@ static int fill_buf(struct userdata *u) {
static int read_byte(struct userdata *u) {
int ret;
- assert(u);
+ pa_assert(u);
if (u->buf_fill < 1)
if (fill_buf(u) < 0)
return -1;
ret = u->buf[0];
- assert(u->buf_fill > 0);
+ pa_assert(u->buf_fill > 0);
u->buf_fill--;
memmove(u->buf, u->buf+1, u->buf_fill);
return ret;
}
static char *read_string(struct userdata *u) {
- assert(u);
+ pa_assert(u);
for (;;) {
char *e;
-
+
if ((e = memchr(u->buf, 0, u->buf_fill))) {
char *ret = pa_xstrdup(u->buf);
u->buf_fill -= e - u->buf +1;
@@ -141,13 +134,13 @@ static char *read_string(struct userdata *u) {
}
static void unload_one_module(struct userdata *u, struct module_info*m, unsigned i) {
- assert(u);
- assert(m);
- assert(i < m->n_items);
+ pa_assert(u);
+ pa_assert(m);
+ pa_assert(i < m->n_items);
if (m->items[i].index == PA_INVALID_INDEX)
return;
-
+
pa_log_debug("Unloading module #%i", m->items[i].index);
pa_module_unload_by_index(u->core, m->items[i].index);
m->items[i].index = PA_INVALID_INDEX;
@@ -158,9 +151,9 @@ static void unload_one_module(struct userdata *u, struct module_info*m, unsigned
static void unload_all_modules(struct userdata *u, struct module_info*m) {
unsigned i;
-
- assert(u);
- assert(m);
+
+ pa_assert(u);
+ pa_assert(m);
for (i = 0; i < m->n_items; i++)
unload_one_module(u, m, i);
@@ -177,11 +170,11 @@ static void load_module(
int is_new) {
pa_module *mod;
-
- assert(u);
- assert(m);
- assert(name);
- assert(args);
+
+ pa_assert(u);
+ pa_assert(m);
+ pa_assert(name);
+ pa_assert(args);
if (!is_new) {
if (m->items[i].index != PA_INVALID_INDEX &&
@@ -191,18 +184,18 @@ static void load_module(
unload_one_module(u, m, i);
}
-
+
pa_log_debug("Loading module '%s' with args '%s' due to GConf configuration.", name, args);
m->items[i].name = pa_xstrdup(name);
m->items[i].args = pa_xstrdup(args);
m->items[i].index = PA_INVALID_INDEX;
-
+
if (!(mod = pa_module_load(u->core, name, args))) {
pa_log("pa_module_load() failed");
return;
}
-
+
m->items[i].index = mod->index;
}
@@ -210,8 +203,8 @@ static void module_info_free(void *p, void *userdata) {
struct module_info *m = p;
struct userdata *u = userdata;
- assert(m);
- assert(u);
+ pa_assert(m);
+ pa_assert(u);
unload_all_modules(u, m);
pa_xfree(m->name);
@@ -223,20 +216,23 @@ static int handle_event(struct userdata *u) {
int ret = 0;
do {
- if ((opcode = read_byte(u)) < 0)
+ if ((opcode = read_byte(u)) < 0){
+ if (errno == EINTR || errno == EAGAIN)
+ break;
goto fail;
-
+ }
+
switch (opcode) {
case '!':
/* The helper tool is now initialized */
ret = 1;
break;
-
+
case '+': {
char *name;
struct module_info *m;
unsigned i, j;
-
+
if (!(name = read_string(u)))
goto fail;
@@ -280,16 +276,16 @@ static int handle_event(struct userdata *u) {
/* Unload all removed modules */
for (j = i; j < m->n_items; j++)
unload_one_module(u, m, j);
-
+
m->n_items = i;
-
+
break;
}
-
+
case '-': {
char *name;
struct module_info *m;
-
+
if (!(name = read_string(u)))
goto fail;
@@ -299,7 +295,7 @@ static int handle_event(struct userdata *u) {
}
pa_xfree(name);
-
+
break;
}
}
@@ -322,101 +318,22 @@ static void io_event_cb(
struct userdata *u = userdata;
if (handle_event(u) < 0) {
-
+
if (u->io_event) {
u->core->mainloop->io_free(u->io_event);
u->io_event = NULL;
}
-
- pa_module_unload_request(u->module);
- }
-}
-
-static int start_client(const char *n, pid_t *pid) {
- pid_t child;
- int pipe_fds[2] = { -1, -1 };
-
- if (pipe(pipe_fds) < 0) {
- pa_log("pipe() failed: %s", pa_cstrerror(errno));
- goto fail;
- }
-
- if ((child = fork()) == (pid_t) -1) {
- pa_log("fork() failed: %s", pa_cstrerror(errno));
- goto fail;
- } else if (child != 0) {
-
- /* Parent */
- close(pipe_fds[1]);
-
- if (pid)
- *pid = child;
-
- return pipe_fds[0];
- } else {
- int max_fd, i;
-
- /* child */
-
- close(pipe_fds[0]);
- dup2(pipe_fds[1], 1);
-
- if (pipe_fds[1] != 1)
- close(pipe_fds[1]);
-
- close(0);
- open("/dev/null", O_RDONLY);
-
- close(2);
- open("/dev/null", O_WRONLY);
-
- max_fd = 1024;
-
-#ifdef HAVE_SYS_RESOURCE_H
- {
- struct rlimit r;
- if (getrlimit(RLIMIT_NOFILE, &r) == 0)
- max_fd = r.rlim_max;
- }
-#endif
-
- for (i = 3; i < max_fd; i++)
- close(i);
-#ifdef PR_SET_PDEATHSIG
- /* On Linux we can use PR_SET_PDEATHSIG to have the helper
- process killed when the daemon dies abnormally. On non-Linux
- machines the client will die as soon as it writes data to
- stdout again (SIGPIPE) */
-
- prctl(PR_SET_PDEATHSIG, SIGTERM, 0, 0, 0);
-#endif
-
-#ifdef SIGPIPE
- /* Make sure that SIGPIPE kills the child process */
- signal(SIGPIPE, SIG_DFL);
-#endif
-
- execl(n, n, NULL);
- _exit(1);
+ pa_module_unload_request(u->module);
}
-
-fail:
- if (pipe_fds[0] >= 0)
- close(pipe_fds[0]);
-
- if (pipe_fds[1] >= 0)
- close(pipe_fds[1]);
-
- return -1;
}
-int pa__init(pa_core *c, pa_module*m) {
+int pa__init(pa_module*m) {
struct userdata *u;
int r;
u = pa_xnew(struct userdata, 1);
- u->core = c;
+ u->core = m->core;
u->module = m;
m->userdata = u;
u->module_infos = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
@@ -425,17 +342,17 @@ int pa__init(pa_core *c, pa_module*m) {
u->fd_type = 0;
u->io_event = NULL;
u->buf_fill = 0;
-
- if ((u->fd = start_client(PA_GCONF_HELPER, &u->pid)) < 0)
+
+ if ((u->fd = pa_start_child_for_read(PA_GCONF_HELPER, NULL, &u->pid)) < 0)
goto fail;
-
- u->io_event = c->mainloop->io_new(
- c->mainloop,
+
+ u->io_event = m->core->mainloop->io_new(
+ m->core->mainloop,
u->fd,
PA_IO_EVENT_INPUT,
io_event_cb,
u);
-
+
do {
if ((r = handle_event(u)) < 0)
goto fail;
@@ -443,37 +360,36 @@ int pa__init(pa_core *c, pa_module*m) {
/* Read until the client signalled us that it is ready with
* initialization */
} while (r != 1);
-
+
return 0;
fail:
- pa__done(c, m);
+ pa__done(m);
return -1;
}
-void pa__done(pa_core *c, pa_module*m) {
+void pa__done(pa_module*m) {
struct userdata *u;
- assert(c);
- assert(m);
+ pa_assert(m);
if (!(u = m->userdata))
return;
- if (u->io_event)
- c->mainloop->io_free(u->io_event);
-
- if (u->fd >= 0)
- close(u->fd);
-
if (u->pid != (pid_t) -1) {
kill(u->pid, SIGTERM);
waitpid(u->pid, NULL, 0);
}
+ if (u->io_event)
+ m->core->mainloop->io_free(u->io_event);
+
+ if (u->fd >= 0)
+ pa_close(u->fd);
+
+
if (u->module_infos)
pa_hashmap_free(u->module_infos, module_info_free, u);
pa_xfree(u);
}
-
generated by cgit (git 2.34.1) at 2025-09-05 13:24:00 +0000