/* get-sockname */
static void cmd_get_sockname(struct watchman_client* client, const json_ref&) {
auto resp = make_response();
resp.set("sockname", typed_string_to_json(get_sock_name(), W_STRING_BYTE));
send_and_dispose_response(client, std::move(resp));
}
/* get-sockname */
void cmd_get_sockname(struct watchman_client *client, json_t *args)
{
json_t *resp = make_response();
unused_parameter(args);
set_prop(resp, "sockname", json_string(get_sock_name()));
send_and_dispose_response(client, resp);
}
void
boss::Socket::get_sock_name(string & socket_address, uint16_t & socket_port)
{
struct sockaddr name;
struct sockaddr_in *p = (struct sockaddr_in *) &name;
socklen_t namelen = sizeof(name);
bzero(&name, sizeof(struct sockaddr));
get_sock_name(name, namelen);
char addr[INET_ADDRSTRLEN];
socket_address = inet_ntop(AF_INET, &p->sin_addr, addr, sizeof(addr));
socket_port = ntohs(p->sin_port);
return;
}
struct watchman_trigger_command *w_build_trigger_from_def(
w_root_t *root, json_t *trig, char **errmsg)
{
struct watchman_trigger_command *cmd;
json_t *ele, *query;
json_int_t jint;
const char *name = NULL;
cmd = calloc(1, sizeof(*cmd));
if (!cmd) {
*errmsg = strdup("no memory");
return NULL;
}
cmd->definition = trig;
json_incref(cmd->definition);
query = json_pack("{s:O}", "expression",
json_object_get(cmd->definition, "expression"));
cmd->query = w_query_parse(query, errmsg);
json_decref(query);
if (!cmd->query) {
w_trigger_command_free(cmd);
return NULL;
}
json_unpack(trig, "{s:s}", "name", &name);
if (!name) {
*errmsg = strdup("invalid or missing name");
w_trigger_command_free(cmd);
return NULL;
}
cmd->triggername = w_string_new(name);
cmd->command = json_object_get(trig, "command");
if (cmd->command) {
json_incref(cmd->command);
}
if (!cmd->command || !json_is_array(cmd->command) ||
!json_array_size(cmd->command)) {
*errmsg = strdup("invalid command array");
w_trigger_command_free(cmd);
return NULL;
}
json_unpack(trig, "{s:b}", "append_files", &cmd->append_files);
ele = json_object_get(trig, "stdin");
if (!ele) {
cmd->stdin_style = input_dev_null;
} else if (json_is_array(ele)) {
cmd->stdin_style = input_json;
if (!parse_field_list(ele, &cmd->field_list, errmsg)) {
w_trigger_command_free(cmd);
return NULL;
}
} else if (json_is_string(ele)) {
const char *str = json_string_value(ele);
if (!strcmp(str, "/dev/null")) {
cmd->stdin_style = input_dev_null;
} else if (!strcmp(str, "NAME_PER_LINE")) {
cmd->stdin_style = input_name_list;
} else {
ignore_result(asprintf(errmsg, "invalid stdin value %s", str));
w_trigger_command_free(cmd);
return NULL;
}
} else {
*errmsg = strdup("invalid value for stdin");
w_trigger_command_free(cmd);
return NULL;
}
jint = 0; // unlimited unless specified
json_unpack(trig, "{s:I}", "max_files_stdin", &jint);
if (jint < 0) {
*errmsg = strdup("max_files_stdin must be >= 0");
w_trigger_command_free(cmd);
return NULL;
}
cmd->max_files_stdin = jint;
json_unpack(trig, "{s:s}", "stdout", &cmd->stdout_name);
json_unpack(trig, "{s:s}", "stderr", &cmd->stderr_name);
if (!parse_redirection(&cmd->stdout_name, &cmd->stdout_flags,
"stdout", errmsg)) {
w_trigger_command_free(cmd);
return NULL;
}
if (!parse_redirection(&cmd->stderr_name, &cmd->stderr_flags,
"stderr", errmsg)) {
w_trigger_command_free(cmd);
return NULL;
}
// Copy current environment
cmd->envht = w_envp_make_ht();
// Set some standard vars
w_envp_set(cmd->envht, "WATCHMAN_ROOT", root->root_path);
w_envp_set_cstring(cmd->envht, "WATCHMAN_SOCK", get_sock_name());
w_envp_set(cmd->envht, "WATCHMAN_TRIGGER", cmd->triggername);
return cmd;
}
static void *perf_log_thread(void *unused) {
json_t *samples = NULL;
char **envp;
json_t *perf_cmd;
int64_t sample_batch;
unused_parameter(unused);
w_set_thread_name("perflog");
// Prep some things that we'll need each time we run a command
{
uint32_t env_size;
w_ht_t *envpht = w_envp_make_ht();
char *statedir = dirname(strdup(watchman_state_file));
w_envp_set_cstring(envpht, "WATCHMAN_STATE_DIR", statedir);
w_envp_set_cstring(envpht, "WATCHMAN_SOCK", get_sock_name());
envp = w_envp_make_from_ht(envpht, &env_size);
}
perf_cmd = cfg_get_json(NULL, "perf_logger_command");
if (json_is_string(perf_cmd)) {
perf_cmd = json_pack("[O]", perf_cmd);
}
if (!json_is_array(perf_cmd)) {
w_log(
W_LOG_FATAL,
"perf_logger_command must be either a string or an array of strings\n");
}
sample_batch =
cfg_get_int(NULL, "perf_logger_command_max_samples_per_call", 4);
while (true) {
pthread_mutex_lock(&perf_log_lock);
if (!perf_log_samples) {
pthread_cond_wait(&perf_log_cond, &perf_log_lock);
}
samples = perf_log_samples;
perf_log_samples = NULL;
pthread_mutex_unlock(&perf_log_lock);
if (samples) {
while (json_array_size(samples) > 0) {
int i = 0;
json_t *cmd = json_array();
posix_spawnattr_t attr;
posix_spawn_file_actions_t actions;
pid_t pid;
char **argv = NULL;
json_array_extend(cmd, perf_cmd);
while (i < sample_batch && json_array_size(samples) > 0) {
char *stringy = json_dumps(json_array_get(samples, 0), 0);
json_array_append(cmd, typed_string_to_json(stringy, W_STRING_MIXED));
free(stringy);
json_array_remove(samples, 0);
i++;
}
argv = w_argv_copy_from_json(cmd, 0);
if (!argv) {
char *dumped = json_dumps(cmd, 0);
w_log(W_LOG_FATAL, "error converting %s to an argv array\n", dumped);
}
posix_spawnattr_init(&attr);
#ifdef POSIX_SPAWN_CLOEXEC_DEFAULT
posix_spawnattr_setflags(&attr, POSIX_SPAWN_CLOEXEC_DEFAULT);
#endif
posix_spawn_file_actions_init(&actions);
posix_spawn_file_actions_addopen(&actions, STDIN_FILENO, "/dev/null",
O_RDONLY, 0666);
posix_spawn_file_actions_addopen(&actions, STDOUT_FILENO, "/dev/null",
O_WRONLY, 0666);
posix_spawn_file_actions_addopen(&actions, STDERR_FILENO, "/dev/null",
O_WRONLY, 0666);
if (posix_spawnp(&pid, argv[0], &actions, &attr, argv, envp) == 0) {
// There's no sense waiting here, because w_reap_children is called
// by the reaper thread.
} else {
int err = errno;
w_log(W_LOG_ERR, "failed to spawn %s: %s\n", argv[0],
strerror(err));
}
posix_spawnattr_destroy(&attr);
posix_spawn_file_actions_destroy(&actions);
free(argv);
json_decref(cmd);
}
json_decref(samples);
}
}
return NULL;
}
void PerfLogThread::loop() {
json_ref samples;
char **envp;
json_ref perf_cmd;
int64_t sample_batch;
w_set_thread_name("perflog");
// Prep some things that we'll need each time we run a command
{
uint32_t env_size;
auto envpht = w_envp_make_ht();
char *statedir = dirname(strdup(watchman_state_file));
w_envp_set_cstring(envpht, "WATCHMAN_STATE_DIR", statedir);
w_envp_set_cstring(envpht, "WATCHMAN_SOCK", get_sock_name());
envp = w_envp_make_from_ht(envpht, &env_size);
}
perf_cmd = cfg_get_json("perf_logger_command");
if (json_is_string(perf_cmd)) {
perf_cmd = json_array({perf_cmd});
}
if (!json_is_array(perf_cmd)) {
w_log(
W_LOG_FATAL,
"perf_logger_command must be either a string or an array of strings\n");
}
sample_batch = cfg_get_int("perf_logger_command_max_samples_per_call", 4);
while (!w_is_stopping()) {
{
auto wlock = samples_.wlock();
if (!*wlock) {
cond_.wait(wlock.getUniqueLock());
}
samples = nullptr;
std::swap(samples, *wlock);
}
if (samples) {
while (json_array_size(samples) > 0) {
int i = 0;
auto cmd = json_array();
posix_spawnattr_t attr;
posix_spawn_file_actions_t actions;
pid_t pid;
char **argv = NULL;
json_array_extend(cmd, perf_cmd);
while (i < sample_batch && json_array_size(samples) > 0) {
char *stringy = json_dumps(json_array_get(samples, 0), 0);
if (stringy) {
json_array_append_new(
cmd, typed_string_to_json(stringy, W_STRING_MIXED));
free(stringy);
}
json_array_remove(samples, 0);
i++;
}
argv = w_argv_copy_from_json(cmd, 0);
if (!argv) {
char *dumped = json_dumps(cmd, 0);
w_log(W_LOG_FATAL, "error converting %s to an argv array\n", dumped);
}
posix_spawnattr_init(&attr);
#ifdef POSIX_SPAWN_CLOEXEC_DEFAULT
posix_spawnattr_setflags(&attr, POSIX_SPAWN_CLOEXEC_DEFAULT);
#endif
posix_spawn_file_actions_init(&actions);
posix_spawn_file_actions_addopen(&actions, STDIN_FILENO, "/dev/null",
O_RDONLY, 0666);
posix_spawn_file_actions_addopen(&actions, STDOUT_FILENO, "/dev/null",
O_WRONLY, 0666);
posix_spawn_file_actions_addopen(&actions, STDERR_FILENO, "/dev/null",
O_WRONLY, 0666);
if (posix_spawnp(&pid, argv[0], &actions, &attr, argv, envp) == 0) {
int status;
while (waitpid(pid, &status, 0) != pid) {
if (errno != EINTR) {
break;
}
}
} else {
int err = errno;
w_log(W_LOG_ERR, "failed to spawn %s: %s\n", argv[0],
strerror(err));
}
posix_spawnattr_destroy(&attr);
posix_spawn_file_actions_destroy(&actions);
free(argv);
}
}
}
}
