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#include "../include/Exec.hpp"
#include "../include/env.hpp"
using namespace std;
namespace sibs
{
#if OS_FAMILY == OS_FAMILY_POSIX
Result<ExecResult> exec(const _tinydir_char_t *cmd, bool print)
{
char buffer[128];
std::string result;
FILE *pipe = popen(cmd, "r");
if(!pipe)
return Result<ExecResult>::Err("popen() failed");
while(!feof(pipe))
{
if(fgets(buffer, 128, pipe))
{
result += buffer;
if(print)
printf("%s", buffer);
}
}
int processCloseResult = pclose(pipe);
if(WIFEXITED(processCloseResult))
{
int returned = WEXITSTATUS(processCloseResult);
ExecResult execResult;
execResult.execStdout = result;
execResult.exitCode = returned;
return Result<ExecResult>::Ok(execResult);
}
else if(WIFSIGNALED(processCloseResult))
{
int signum = WSTOPSIG(processCloseResult);
string errMsg = "Exited due to receiving signal ";
errMsg += to_string(signum);
return Result<ExecResult>::Err(errMsg);
}
else if(WIFSTOPPED(processCloseResult))
{
int signum = WSTOPSIG(processCloseResult);
string errMsg = "Stopped due to receiving signal ";
errMsg += to_string(signum);
return Result<ExecResult>::Err(errMsg);
}
else
{
string errMsg = "exec unexpected error on pclose: ";
errMsg += to_string(processCloseResult);
return Result<ExecResult>::Err(errMsg);
}
}
#else
// TODO(Windows): Redirect stdout (and stderr) to string
Result<ExecResult> exec(const _tinydir_char_t *cmd, bool print)
{
char buffer[128];
std::string result;
STARTUPINFO startupInfo;
ZeroMemory(&startupInfo, sizeof(startupInfo));
startupInfo.cb = sizeof(startupInfo);
PROCESS_INFORMATION processInfo;
ZeroMemory(&processInfo, sizeof(processInfo));
DWORD exitCode;
if (!CreateProcess(NULL, (LPWSTR)cmd, NULL, NULL, FALSE, 0, NULL, NULL, &startupInfo, &processInfo))
{
string errMsg = "exec unexpected error: ";
errMsg += toUtf8(getLastErrorAsString());
return Result<ExecResult>::Err(errMsg);
}
WaitForSingleObject(processInfo.hProcess, INFINITE);
GetExitCodeProcess(processInfo.hProcess, &exitCode);
CloseHandle(processInfo.hProcess);
CloseHandle(processInfo.hThread);
if (exitCode == 0)
{
ExecResult execResult;
execResult.execStdout = result;
execResult.exitCode = exitCode;
return Result<ExecResult>::Ok(execResult);
}
else
{
string errMsg = "Exited with non-zero exit code (";
errMsg += to_string(exitCode);
errMsg += "): ";
errMsg += toUtf8(getLastErrorAsString());
return Result<ExecResult>::Err(errMsg);
}
}
#endif
}
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