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bridge.cc
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bridge.cc
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#include <bridge.h>
#include <process.h>
#include <iostream>
#include <signal.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <vector>
#ifdef __linux__
#include <cstring>
#include <string>
#include <cstdlib>
#include <dirent.h>
#include <sys/prctl.h>
#elif __APPLE__
#include <libproc.h>
#include <sys/proc_info.h>
#include <libproc.h>
#include <sys/proc_info.h>
#include <iostream>
#include <crt_externs.h>
#endif
using namespace std;
void set_program_name(String name) {
#ifdef __linux__
prctl(PR_SET_NAME, name.c_str());
#elif __APPLE__
setprogname(name.c_str());
#endif
}
int64_t get_child_pid(int64_t parentPID) {
#ifdef __linux__
DIR *dir = opendir("/proc");
if (!dir) {
std::cerr << "[PMC] (cc) Error opening /proc directory.\n";
return -1;
}
int targetPID = -1;
dirent *entry;
while ((entry = readdir(dir)) != nullptr) {
if (entry->d_type == DT_DIR && isdigit(entry->d_name[0])) {
int pid = atoi(entry->d_name);
char statusPath[256];
snprintf(statusPath, sizeof(statusPath), "/proc/%d/status", pid);
FILE *statusFile = fopen(statusPath, "r");
if (statusFile) {
char buffer[256];
while (fgets(buffer, sizeof(buffer), statusFile) != nullptr) {
if (strncmp(buffer, "PPid:", 5) == 0) {
int parentID;
if (sscanf(buffer + 5, "%d", &parentID) == 1 && parentID == parentPID) {
targetPID = pid; break;
} break;
}
}
fclose(statusFile);
}
}
}
closedir(dir);
return targetPID;
#elif __APPLE__
pid_t pidList[1024];
int count = proc_listpids(PROC_ALL_PIDS, 0, pidList, sizeof(pidList));
if (count <= 0) {
std::cerr << "Error retrieving process list." << std::endl;
return -1;
}
for (int i = 0; i < count; ++i) {
struct proc_bsdinfo procInfo;
if (proc_pidinfo(pidList[i], PROC_PIDTBSDINFO, 0, &procInfo, sizeof(procInfo)) > 0) {
if (procInfo.pbi_ppid == parentPID) {
return static_cast<int>(pidList[i]);
}
}
}
return -1;
#else
return -1;
#endif
}
int64_t stop(int64_t pid) {
vector<pid_t> children;
int64_t child;
while ((child = get_child_pid(pid)) != -1) {
children.push_back(child);
pid = child;
}
for (size_t i = 0; i < children.size(); i++) {
kill(children[i], SIGTERM);
}
return kill(pid, SIGTERM);
}
int64_t run(ProcessMetadata metadata) {
process::Runner runner;
runner.New(std::string(metadata.name), std::string(metadata.log_path));
return runner.Run(std::string(metadata.command), std::string(metadata.shell), metadata.args);
}

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