Function readProcessCmdline

src/os_linux.cpp:505–547

}

static bool readProcessCmdline(int pid, ProcessInfo* info) {
    char path[64];
    snprintf(path, sizeof(path), "/proc/%d/cmdline", pid);

    int fd = open(path, O_RDONLY);
    if (fd == -1) {
        return false;
    }

    const size_t max_read = sizeof(info->cmdline) - 1;
    size_t len = 0;

    ssize_t r;
    while (r = read(fd, info->cmdline + len, max_read - len)) {
        if (r > 0) {
            len += (size_t)r;
            if (len == max_read) break;
        } else {
            if (errno == EINTR) continue;
            close(fd);
            return false;
        }
    }

    close(fd);

    // Replace null bytes with spaces (arguments are separated by null bytes)
    for (size_t i = 0; i < len; i++) {
        if (info->cmdline[i] == '\0') {
            info->cmdline[i] = ' ';
        }
    }

    // Ensure null termination
    info->cmdline[len] = '\0';

    // Remove trailing space if present
    while (len > 0 && info->cmdline[len - 1] == ' ') {
        info->cmdline[--len] = '\0';
    }

    return true;
}

static bool readProcessStats(int pid, ProcessInfo* info) {
    char path[64];