diff options
Diffstat (limited to 'src/modules/module-protocol-pulse/cmd.c')
| -rw-r--r-- | src/modules/module-protocol-pulse/cmd.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/modules/module-protocol-pulse/cmd.c b/src/modules/module-protocol-pulse/cmd.c new file mode 100644 index 0000000..e8e6406 --- /dev/null +++ b/src/modules/module-protocol-pulse/cmd.c @@ -0,0 +1,136 @@ +/* PipeWire + * + * Copyright © 2022 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include <spa/utils/json.h> + +#include <pipewire/utils.h> + +#include "module.h" +#include "cmd.h" + +static const char WHITESPACE[] = " \t\n\r"; + +static int do_load_module(struct impl *impl, char *args, const char *flags) +{ + int res, n; + struct module *module; + char *a[2] = { NULL }; + + n = pw_split_ip(args, WHITESPACE, 2, a); + if (n < 1) { + pw_log_info("load-module expects module name"); + return -EINVAL; + } + + module = module_create(impl, a[0], a[1]); + if (module == NULL) + return -errno; + if ((res = module_load(module)) < 0) + return res; + + return res; +} + +static int do_cmd(struct impl *impl, const char *cmd, char *args, const char *flags) +{ + int res = 0; + if (spa_streq(cmd, "load-module")) { + res = do_load_module(impl, args, flags); + } else { + pw_log_warn("ignoring unknown command `%s` with args `%s`", + cmd, args); + } + if (res < 0) { + if (flags && strstr(flags, "nofail")) { + pw_log_info("nofail command %s %s: %s", + cmd, args, spa_strerror(res)); + res = 0; + } else { + pw_log_error("can't run command %s %s: %s", + cmd, args, spa_strerror(res)); + } + } + return res; +} + +/* + * pulse.cmd = [ + * { cmd = <command> [ args = "<arguments>" ] } + * ... + * ] + */ +static int parse_cmd(void *user_data, const char *location, + const char *section, const char *str, size_t len) +{ + struct impl *impl = user_data; + struct spa_json it[3]; + char key[512], *s; + int res = 0; + + s = strndup(str, len); + spa_json_init(&it[0], s, len); + if (spa_json_enter_array(&it[0], &it[1]) < 0) { + pw_log_error("config file error: pulse.cmd is not an array"); + res = -EINVAL; + goto exit; + } + + while (spa_json_enter_object(&it[1], &it[2]) > 0) { + char *cmd = NULL, *args = NULL, *flags = NULL; + + while (spa_json_get_string(&it[2], key, sizeof(key)) > 0) { + const char *val; + int len; + + if ((len = spa_json_next(&it[2], &val)) <= 0) + break; + + if (spa_streq(key, "cmd")) { + cmd = (char*)val; + spa_json_parse_stringn(val, len, cmd, len+1); + } else if (spa_streq(key, "args")) { + args = (char*)val; + spa_json_parse_stringn(val, len, args, len+1); + } else if (spa_streq(key, "flags")) { + if (spa_json_is_container(val, len)) + len = spa_json_container_len(&it[2], val, len); + flags = (char*)val; + spa_json_parse_stringn(val, len, flags, len+1); + } + } + if (cmd != NULL) + res = do_cmd(impl, cmd, args, flags); + if (res < 0) + break; + } +exit: + free(s); + return res; +} + +int cmd_run(struct impl *impl) +{ + return pw_context_conf_section_for_each(impl->context, "pulse.cmd", + parse_cmd, impl); +} |