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authordec05eba <dec05eba@protonmail.com>2022-09-30 16:24:34 +0200
committerdec05eba <dec05eba@protonmail.com>2022-09-30 16:24:34 +0200
commit912515303b6e7a6dee586a70d5eb02e4129ce22c (patch)
tree862e2b94d77a426bb4c853585c37a8141d890eb2 /src
parent1a7fd28a3f54be014076aebdfe98b4f06ab020d7 (diff)
Remove allowing only 1 process of gpu-screen-recorder at a time
Diffstat (limited to 'src')
-rw-r--r--src/main.cpp60
1 files changed, 0 insertions, 60 deletions
diff --git a/src/main.cpp b/src/main.cpp
index a6e76be..caea9b6 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1033,70 +1033,11 @@ static void save_replay_async(AVCodecContext *video_codec_context, int video_str
});
}
-static bool is_process_running_program(pid_t pid, const char *program_name) {
- char filepath[256];
- snprintf(filepath, sizeof(filepath), "/proc/%ld/exe", (long)pid);
-
- char resolved_path[PATH_MAX];
- const ssize_t resolved_path_len = readlink(filepath, resolved_path, sizeof(resolved_path) - 1);
- if(resolved_path_len == -1)
- return false;
-
- resolved_path[resolved_path_len] = '\0';
-
- const int program_name_len = strlen(program_name);
- return resolved_path_len >= program_name_len && memcmp(resolved_path + resolved_path_len - program_name_len, program_name, program_name_len) == 0;
-}
-
-static void handle_existing_pid_file() {
- char buffer[256];
- int fd = open(pid_file, O_RDONLY);
- if(fd == -1)
- return;
-
- ssize_t bytes_read = read(fd, buffer, sizeof(buffer) - 1);
- if(bytes_read < 0) {
- perror("failed to read gpu-screen-recorder pid file");
- exit(1);
- }
- buffer[bytes_read] = '\0';
- close(fd);
-
- long pid = 0;
- if(sscanf(buffer, "%ld %120s", &pid, buffer) == 2) {
- if(is_process_running_program(pid, "gpu-screen-recorder")) {
- fprintf(stderr, "Error: gpu-screen-recorder is already running\n");
- exit(1);
- }
- } else {
- fprintf(stderr, "Warning: gpu-screen-recorder pid file is in incorrect format, it's possible that its corrupt. Replacing file and continuing...\n");
- }
- unlink(pid_file);
-}
-
-static void handle_new_pid_file(const char *mode) {
- int fd = open(pid_file, O_WRONLY|O_CREAT|O_TRUNC, 0777);
- if(fd == -1) {
- perror("failed to create gpu-screen-recorder pid file");
- exit(1);
- }
-
- char buffer[256];
- const int buffer_size = snprintf(buffer, sizeof(buffer), "%ld %s", (long)getpid(), mode);
- if(write(fd, buffer, buffer_size) == -1) {
- perror("failed to write gpu-screen-recorder pid file");
- exit(1);
- }
- close(fd);
-}
-
int main(int argc, char **argv) {
signal(SIGTERM, term_handler);
signal(SIGINT, int_handler);
signal(SIGUSR1, save_replay_handler);
- handle_existing_pid_file();
-
std::map<std::string, Arg> args = {
{ "-w", Arg { {}, false, false } },
//{ "-s", Arg { nullptr, true } },
@@ -1601,7 +1542,6 @@ int main(int argc, char **argv) {
}, av_format_context, &write_output_mutex);
}
- handle_new_pid_file(replay_buffer_size_secs == -1 ? "record" : "replay");
started = 1;
// Set update_fps to 24 to test if duplicate/delayed frames cause video/audio desync or too fast/slow video.