mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-02 09:01:50 -05:00
Implement config/state file handling
Make methods to load_config and load/save state. For now the config and state directories are the same but it might not be. Implement the search path for all config/state files as: $XDG_CONFIG_HOME/[$prefix]/$name $HOME/.config/[$prefix]/$name $PIPEWIRE_CONFIG_DIR/pipewire/[$prefix]/$name /etc/pipewire/[$prefix]/$name Make some config files for jack and RT clients. Make pw-cat use the client-rt config. Use core state and config management in media-session. Move all session manager state and config files to the build dir and set the PIPEWIRE_CONFIG_DIR to this build dir.
This commit is contained in:
Wim Taymans
parent
c605672d43
commit
fc90a4e48a
13 changed files with 380 additions and 216 deletions
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@ -150,9 +150,6 @@ struct impl {
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int rescan_seq;
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int last_seq;
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int state_dir_fd;
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char state_dir[PATH_MAX];
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unsigned int scanning:1;
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unsigned int rescan_pending:1;
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};
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@ -1786,171 +1783,19 @@ int sm_media_session_remove_links(struct sm_media_session *sess,
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int sm_media_session_load_conf(struct sm_media_session *sess, const char *name,
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struct pw_properties *conf)
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{
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const char *dir;
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char path[PATH_MAX];
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int count, fd;
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struct stat sbuf;
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char *data;
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if ((count = sm_media_session_load_state(sess, name, NULL, conf)) >= 0)
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return count;
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if ((dir = getenv("PIPEWIRE_CONFIG_DIR")) == NULL)
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dir = PIPEWIRE_CONFIG_DIR;
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if (dir == NULL)
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return -ENOENT;
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snprintf(path, sizeof(path), "%s/media-session.d/%s", dir, name);
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if ((fd = open(path, O_CLOEXEC | O_RDONLY)) < 0) {
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pw_log_warn(NAME" %p: error loading config '%s': %m", sess, path);
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return -errno;
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}
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pw_log_info(NAME" %p: loading config '%s'", sess, path);
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if (fstat(fd, &sbuf) < 0)
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goto error_close;
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if ((data = mmap(NULL, sbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0)) == MAP_FAILED)
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goto error_close;
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close(fd);
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count = pw_properties_update_string(conf, data, sbuf.st_size);
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munmap(data, sbuf.st_size);
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return count;
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error_close:
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pw_log_debug("can't read file %s: %m", path);
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close(fd);
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return -errno;
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}
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static int state_dir(struct sm_media_session *sess)
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{
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struct impl *impl = SPA_CONTAINER_OF(sess, struct impl, this);
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const char *home_dir;
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int res;
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if (impl->state_dir_fd != -1)
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return impl->state_dir_fd;
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home_dir = getenv("XDG_CONFIG_HOME");
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if (home_dir != NULL)
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snprintf(impl->state_dir, sizeof(impl->state_dir),
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"%s/pipewire-media-session/", home_dir);
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else {
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home_dir = getenv("HOME");
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if (home_dir == NULL)
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home_dir = getenv("USERPROFILE");
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if (home_dir == NULL) {
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struct passwd pwd, *result = NULL;
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char buffer[4096];
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if (getpwuid_r(getuid(), &pwd, buffer, sizeof(buffer), &result) == 0)
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home_dir = result ? result->pw_dir : NULL;
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}
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if (home_dir == NULL) {
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pw_log_error("Can't determine home directory");
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return -ENOTSUP;
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}
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snprintf(impl->state_dir, sizeof(impl->state_dir),
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"%s/.config/pipewire-media-session/", home_dir);
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}
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#ifndef O_PATH
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#define O_PATH 0
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#endif
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if ((res = open(impl->state_dir, O_CLOEXEC | O_DIRECTORY | O_PATH)) < 0) {
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if (errno == ENOENT) {
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pw_log_info("creating state directory %s", impl->state_dir);
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if (mkdir(impl->state_dir, 0700) < 0) {
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pw_log_info("Can't create state directory %s: %m", impl->state_dir);
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return -errno;
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}
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} else {
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pw_log_error("Can't open state directory %s: %m", impl->state_dir);
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return -errno;
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}
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if ((res = open(impl->state_dir, O_CLOEXEC | O_DIRECTORY | O_PATH)) < 0) {
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pw_log_error("Can't open state directory %s: %m", impl->state_dir);
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return -EINVAL;
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}
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}
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impl->state_dir_fd = res;
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return res;
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return pw_conf_load_conf(SESSION_PREFIX, name, conf);
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}
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int sm_media_session_load_state(struct sm_media_session *sess,
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const char *name, const char *prefix, struct pw_properties *props)
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{
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struct impl *impl = SPA_CONTAINER_OF(sess, struct impl, this);
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int count, sfd, fd;
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struct stat sbuf;
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void *data;
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if ((sfd = state_dir(sess)) < 0)
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return sfd;
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if ((fd = openat(sfd, name, O_CLOEXEC | O_RDONLY)) < 0) {
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pw_log_debug("can't open file %s%s: %m", impl->state_dir, name);
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return -errno;
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}
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pw_log_info(NAME" %p: loading state '%s%s'", sess, impl->state_dir, name);
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if (fstat(fd, &sbuf) < 0)
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goto error_close;
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if ((data = mmap(NULL, sbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0)) == MAP_FAILED)
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goto error_close;
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close(fd);
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count = pw_properties_update_string(props, data, sbuf.st_size);
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munmap(data, sbuf.st_size);
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return count;
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error_close:
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pw_log_debug("can't read file %s: %m", name);
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close(fd);
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return -errno;
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return pw_conf_load_state(SESSION_PREFIX, name, props);
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}
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int sm_media_session_save_state(struct sm_media_session *sess,
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const char *name, const char *prefix, const struct pw_properties *props)
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{
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const struct spa_dict_item *it;
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char *tmp_name;
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int sfd, fd;
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FILE *f;
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pw_log_info(NAME" %p: saving state '%s'", sess, name);
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if ((sfd = state_dir(sess)) < 0)
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return sfd;
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tmp_name = alloca(strlen(name)+5);
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sprintf(tmp_name, "%s.tmp", name);
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if ((fd = openat(sfd, tmp_name, O_CLOEXEC | O_CREAT | O_WRONLY | O_TRUNC, 0700)) < 0) {
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pw_log_error("can't open file '%s': %m", tmp_name);
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return -errno;
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}
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f = fdopen(fd, "w");
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fprintf(f, "{ \n");
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spa_dict_for_each(it, &props->dict) {
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char key[1024];
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if (prefix != NULL && strstr(it->key, prefix) != it->key)
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continue;
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if (spa_json_encode_string(key, sizeof(key)-1, it->key) >= (int)sizeof(key)-1)
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continue;
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fprintf(f, " %s: %s\n", key, it->value);
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}
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fprintf(f, "}\n");
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fclose(f);
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if (renameat(sfd, tmp_name, sfd, name) < 0) {
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pw_log_error("can't rename temp file '%s': %m", tmp_name);
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return -errno;
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}
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return 0;
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return pw_conf_save_state(SESSION_PREFIX, name, props);
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}
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static void monitor_core_done(void *data, uint32_t id, int seq)
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@ -2170,7 +2015,7 @@ again:
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add = true;
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} else {
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snprintf(check_path, sizeof(check_path),
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"%s/media-session.d/%s", dir, key);
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"%s/"SESSION_PREFIX"/%s", dir, key);
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add = (stat(check_path, &statbuf) == 0);
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}
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if (add) {
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@ -2259,7 +2104,6 @@ int main(int argc, char *argv[])
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pw_init(&argc, &argv);
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impl.state_dir_fd = -1;
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impl.this.props = pw_properties_new(
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PW_KEY_CONFIG_PREFIX, SESSION_PREFIX,
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PW_KEY_CONFIG_NAME, SESSION_CONF,
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@ -2270,14 +2114,14 @@ int main(int argc, char *argv[])
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if ((impl.conf = pw_properties_new(NULL, NULL)) == NULL)
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return -1;
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pw_conf_load(SESSION_PREFIX, SESSION_CONF, impl.conf);
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pw_conf_load_conf(SESSION_PREFIX, SESSION_CONF, impl.conf);
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if ((str = pw_properties_get(impl.conf, "properties")) != NULL)
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pw_properties_update_string(impl.this.props, str, strlen(str));
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if ((impl.modules = pw_properties_new("default", "true", NULL)) == NULL)
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return -1;
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if ((str = pw_properties_get(impl.conf, "session-modules")) != NULL)
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if ((str = pw_properties_get(impl.conf, "session.modules")) != NULL)
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collect_modules(&impl, str);
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while ((c = getopt_long(argc, argv, "hV", long_options, NULL)) != -1) {
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@ -2368,9 +2212,6 @@ exit:
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pw_properties_free(impl.conf);
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pw_properties_free(impl.modules);
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if (impl.state_dir_fd != -1)
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close(impl.state_dir_fd);
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pw_deinit();
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return res;
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