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metaforce/hecl/lib/hecl.cpp

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#include "hecl/hecl.hpp"
#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <map>
#include <memory>
#include <mutex>
#include <string>
#include <string_view>
#include <thread>
#include <unordered_map>
#ifdef WIN32
#include <windows.h>
#ifndef _WIN32_IE
#define _WIN32_IE 0x0400
#endif
#include <shlobj.h>
#endif
#ifdef __APPLE__
#include <Carbon/Carbon.h>
#endif
#ifdef __linux__
#include <mntent.h>
#include <sys/wait.h>
#endif
#include <logvisor/logvisor.hpp>
using namespace std::literals;
namespace hecl {
unsigned VerbosityLevel = 0;
bool GuiMode = false;
logvisor::Module LogModule("hecl");
constexpr std::string_view Illegals = "<>?\""sv;
void SanitizePath(std::string& path) {
if (path.empty())
return;
path.erase(std::remove(path.begin(), path.end(), '\n'), path.end());
path.erase(std::remove(path.begin(), path.end(), '\r'), path.end());
std::string::iterator p1 = path.begin();
bool ic = false;
std::transform(path.begin(), path.end(), path.begin(), [&](const char a) -> char {
++p1;
if (Illegals.find_first_of(a) != std::string::npos) {
ic = false;
return '_';
}
if (ic) {
ic = false;
return a;
}
if (a == '\\' && (p1 == path.end() || *p1 != '\\')) {
ic = true;
return '/';
}
return a;
});
while (path.back() == '/')
path.pop_back();
}
constexpr std::wstring_view WIllegals = L"<>?\""sv;
void SanitizePath(std::wstring& path) {
if (path.empty())
return;
path.erase(std::remove(path.begin(), path.end(), L'\n'), path.end());
path.erase(std::remove(path.begin(), path.end(), L'\r'), path.end());
std::wstring::iterator p1 = path.begin();
bool ic = false;
std::transform(path.begin(), path.end(), path.begin(), [&](const wchar_t a) -> wchar_t {
++p1;
if (WIllegals.find_first_of(a) != std::wstring::npos) {
ic = false;
return L'_';
}
if (ic) {
ic = false;
return a;
}
if (a == L'\\' && (p1 == path.end() || *p1 != L'\\')) {
ic = true;
return L'/';
}
return a;
});
while (path.back() == L'/')
path.pop_back();
}
SystemString GetcwdStr() {
/* http://stackoverflow.com/a/2869667 */
// const size_t ChunkSize=255;
// const int MaxChunks=10240; // 2550 KiBs of current path are more than enough
SystemChar stackBuffer[255]; // Stack buffer for the "normal" case
if (Getcwd(stackBuffer, int(std::size(stackBuffer))) != nullptr) {
return SystemString(stackBuffer);
}
if (errno != ERANGE) {
// It's not ERANGE, so we don't know how to handle it
LogModule.report(logvisor::Fatal, FMT_STRING("Cannot determine the current path."));
// Of course you may choose a different error reporting method
}
// Ok, the stack buffer isn't long enough; fallback to heap allocation
for (int chunks = 2; chunks < 10240; chunks++) {
// With boost use scoped_ptr; in C++0x, use unique_ptr
// If you want to be less C++ but more efficient you may want to use realloc
const int bufSize = 255 * chunks;
std::unique_ptr<SystemChar[]> cwd(new SystemChar[bufSize]);
if (Getcwd(cwd.get(), bufSize) != nullptr) {
return SystemString(cwd.get());
}
if (errno != ERANGE) {
// It's not ERANGE, so we don't know how to handle it
LogModule.report(logvisor::Fatal, FMT_STRING("Cannot determine the current path."));
// Of course you may choose a different error reporting method
}
}
LogModule.report(logvisor::Fatal, FMT_STRING("Cannot determine the current path; the path is apparently unreasonably long"));
return SystemString();
}
static std::mutex PathsMutex;
static std::unordered_map<std::thread::id, ProjectPath> PathsInProgress;
bool ResourceLock::InProgress(const ProjectPath& path) {
std::unique_lock lk{PathsMutex};
return std::any_of(PathsInProgress.cbegin(), PathsInProgress.cend(),
[&path](const auto& entry) { return entry.second == path; });
}
bool ResourceLock::SetThreadRes(const ProjectPath& path) {
std::unique_lock lk{PathsMutex};
if (PathsInProgress.find(std::this_thread::get_id()) != PathsInProgress.cend()) {
LogModule.report(logvisor::Fatal, FMT_STRING("multiple resource locks on thread"));
}
const bool isInProgress = std::any_of(PathsInProgress.cbegin(), PathsInProgress.cend(),
[&path](const auto& entry) { return entry.second == path; });
if (isInProgress) {
return false;
}
PathsInProgress.insert_or_assign(std::this_thread::get_id(), path);
return true;
}
void ResourceLock::ClearThreadRes() {
std::unique_lock lk{PathsMutex};
PathsInProgress.erase(std::this_thread::get_id());
}
bool IsPathPNG(const hecl::ProjectPath& path) {
const auto fp = hecl::FopenUnique(path.getAbsolutePath().data(), _SYS_STR("rb"));
if (fp == nullptr) {
return false;
}
uint32_t buf = 0;
if (std::fread(&buf, 1, sizeof(buf), fp.get()) != sizeof(buf)) {
return false;
}
buf = hecl::SBig(buf);
return buf == 0x89504e47;
}
bool IsPathBlend(const hecl::ProjectPath& path) {
const auto lastCompExt = path.getLastComponentExt();
if (lastCompExt.empty() || lastCompExt != _SYS_STR("blend"))
return false;
const auto fp = hecl::FopenUnique(path.getAbsolutePath().data(), _SYS_STR("rb"));
if (fp == nullptr) {
return false;
}
uint32_t buf = 0;
if (std::fread(&buf, 1, sizeof(buf), fp.get()) != sizeof(buf)) {
return false;
}
buf = hecl::SLittle(buf);
return buf == 0x4e454c42 || buf == 0x88b1f;
}
bool IsPathYAML(const hecl::ProjectPath& path) {
auto lastComp = path.getLastComponent();
if (lastComp == _SYS_STR("!catalog.yaml") ||
lastComp == _SYS_STR("!memoryid.yaml") ||
lastComp == _SYS_STR("!memoryrelays.yaml"))
return false; /* !catalog.yaml, !memoryid.yaml, !memoryrelays.yaml are exempt from general use */
auto lastCompExt = path.getLastComponentExt();
if (lastCompExt.empty())
return false;
return lastCompExt == _SYS_STR("yaml") || lastCompExt == _SYS_STR("yml");
}
hecl::DirectoryEnumerator::DirectoryEnumerator(SystemStringView path, Mode mode, bool sizeSort, bool reverse,
bool noHidden) {
hecl::Sstat theStat;
if (hecl::Stat(path.data(), &theStat) || !S_ISDIR(theStat.st_mode))
return;
#if _WIN32
hecl::SystemString wc(path);
wc += _SYS_STR("/*");
WIN32_FIND_DATAW d;
HANDLE dir = FindFirstFileW(wc.c_str(), &d);
if (dir == INVALID_HANDLE_VALUE)
return;
switch (mode) {
case Mode::Native:
do {
if (!wcscmp(d.cFileName, _SYS_STR(".")) || !wcscmp(d.cFileName, _SYS_STR("..")))
continue;
if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
continue;
hecl::SystemString fp(path);
fp += _SYS_STR('/');
fp += d.cFileName;
hecl::Sstat st;
if (hecl::Stat(fp.c_str(), &st))
continue;
size_t sz = 0;
bool isDir = false;
if (S_ISDIR(st.st_mode))
isDir = true;
else if (S_ISREG(st.st_mode))
sz = st.st_size;
else
continue;
m_entries.emplace_back(fp, d.cFileName, sz, isDir);
} while (FindNextFileW(dir, &d));
break;
case Mode::DirsThenFilesSorted:
case Mode::DirsSorted: {
std::map<hecl::SystemString, Entry, CaseInsensitiveCompare> sort;
do {
if (!wcscmp(d.cFileName, _SYS_STR(".")) || !wcscmp(d.cFileName, _SYS_STR("..")))
continue;
if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
continue;
hecl::SystemString fp(path);
fp += _SYS_STR('/');
fp += d.cFileName;
hecl::Sstat st;
if (hecl::Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode))
continue;
sort.emplace(std::make_pair(d.cFileName, Entry(std::move(fp), d.cFileName, 0, true)));
} while (FindNextFileW(dir, &d));
if (reverse)
for (auto it = sort.crbegin(); it != sort.crend(); ++it)
m_entries.push_back(std::move(it->second));
else
for (auto& e : sort)
m_entries.push_back(std::move(e.second));
if (mode == Mode::DirsSorted)
break;
FindClose(dir);
dir = FindFirstFileW(wc.c_str(), &d);
}
case Mode::FilesSorted: {
if (mode == Mode::FilesSorted)
m_entries.clear();
if (sizeSort) {
std::multimap<size_t, Entry> sort;
do {
if (!wcscmp(d.cFileName, _SYS_STR(".")) || !wcscmp(d.cFileName, _SYS_STR("..")))
continue;
if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
continue;
hecl::SystemString fp(path);
fp += _SYS_STR('/');
fp += d.cFileName;
hecl::Sstat st;
if (hecl::Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
continue;
sort.emplace(std::make_pair(st.st_size, Entry(std::move(fp), d.cFileName, st.st_size, false)));
} while (FindNextFileW(dir, &d));
if (reverse)
for (auto it = sort.crbegin(); it != sort.crend(); ++it)
m_entries.push_back(std::move(it->second));
else
for (auto& e : sort)
m_entries.push_back(std::move(e.second));
} else {
std::map<hecl::SystemString, Entry, CaseInsensitiveCompare> sort;
do {
if (!wcscmp(d.cFileName, _SYS_STR(".")) || !wcscmp(d.cFileName, _SYS_STR("..")))
continue;
if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
continue;
hecl::SystemString fp(path);
fp += _SYS_STR('/');
fp += d.cFileName;
hecl::Sstat st;
if (hecl::Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
continue;
sort.emplace(std::make_pair(d.cFileName, Entry(std::move(fp), d.cFileName, st.st_size, false)));
} while (FindNextFileW(dir, &d));
if (reverse)
for (auto it = sort.crbegin(); it != sort.crend(); ++it)
m_entries.push_back(std::move(it->second));
else
for (auto& e : sort)
m_entries.push_back(std::move(e.second));
}
break;
}
}
FindClose(dir);
#else
DIR* dir = opendir(path.data());
if (!dir)
return;
const dirent* d;
switch (mode) {
case Mode::Native:
while ((d = readdir(dir))) {
if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
continue;
if (noHidden && d->d_name[0] == '.')
continue;
hecl::SystemString fp(path);
fp += '/';
fp += d->d_name;
hecl::Sstat st;
if (hecl::Stat(fp.c_str(), &st))
continue;
size_t sz = 0;
bool isDir = false;
if (S_ISDIR(st.st_mode))
isDir = true;
else if (S_ISREG(st.st_mode))
sz = st.st_size;
else
continue;
m_entries.push_back(Entry(std::move(fp), d->d_name, sz, isDir));
}
break;
case Mode::DirsThenFilesSorted:
case Mode::DirsSorted: {
std::map<hecl::SystemString, Entry, CaseInsensitiveCompare> sort;
while ((d = readdir(dir))) {
if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
continue;
if (noHidden && d->d_name[0] == '.')
continue;
hecl::SystemString fp(path);
fp += '/';
fp += d->d_name;
hecl::Sstat st;
if (hecl::Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode))
continue;
sort.emplace(std::make_pair(d->d_name, Entry(std::move(fp), d->d_name, 0, true)));
}
if (reverse)
for (auto it = sort.crbegin(); it != sort.crend(); ++it)
m_entries.push_back(std::move(it->second));
else
for (auto& e : sort)
m_entries.push_back(std::move(e.second));
if (mode == Mode::DirsSorted)
break;
rewinddir(dir);
[[fallthrough]];
}
case Mode::FilesSorted: {
if (mode == Mode::FilesSorted)
m_entries.clear();
if (sizeSort) {
std::multimap<size_t, Entry> sort;
while ((d = readdir(dir))) {
if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
continue;
if (noHidden && d->d_name[0] == '.')
continue;
hecl::SystemString fp(path);
fp += '/';
fp += d->d_name;
hecl::Sstat st;
if (hecl::Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
continue;
sort.emplace(std::make_pair(st.st_size, Entry(std::move(fp), d->d_name, st.st_size, false)));
}
if (reverse)
for (auto it = sort.crbegin(); it != sort.crend(); ++it)
m_entries.push_back(std::move(it->second));
else
for (auto& e : sort)
m_entries.push_back(std::move(e.second));
} else {
std::map<hecl::SystemString, Entry, CaseInsensitiveCompare> sort;
while ((d = readdir(dir))) {
if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
continue;
if (noHidden && d->d_name[0] == '.')
continue;
hecl::SystemString fp(path);
fp += '/';
fp += d->d_name;
hecl::Sstat st;
if (hecl::Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
continue;
sort.emplace(std::make_pair(d->d_name, Entry(std::move(fp), d->d_name, st.st_size, false)));
}
if (reverse)
for (auto it = sort.crbegin(); it != sort.crend(); ++it)
m_entries.push_back(std::move(it->second));
else
for (auto& e : sort)
m_entries.push_back(std::move(e.second));
}
break;
}
}
closedir(dir);
#endif
}
static std::pair<hecl::SystemString, std::string> NameFromPath(hecl::SystemStringView path) {
hecl::SystemUTF8Conv utf8(path);
if (utf8.str().size() == 1 && utf8.str()[0] == '/')
return {hecl::SystemString(path), "/"};
size_t lastSlash = utf8.str().rfind('/');
if (lastSlash != std::string::npos)
return {hecl::SystemString(path), std::string(utf8.str().cbegin() + lastSlash + 1, utf8.str().cend())};
else
return {hecl::SystemString(path), std::string(utf8.str())};
}
std::vector<std::pair<hecl::SystemString, std::string>> GetSystemLocations() {
std::vector<std::pair<hecl::SystemString, std::string>> ret;
#ifdef WIN32
#if !WINDOWS_STORE
/* Add the drive names to the listing (as queried by blender) */
{
constexpr uint32_t FILE_MAXDIR = 768;
wchar_t wline[FILE_MAXDIR];
const uint32_t tmp = GetLogicalDrives();
for (uint32_t i = 0; i < 26; i++) {
if ((tmp >> i) & 1) {
wline[0] = L'A' + i;
wline[1] = L':';
wline[2] = L'/';
wline[3] = L'\0';
wchar_t* name = nullptr;
/* Flee from horrible win querying hover floppy drives! */
if (i > 1) {
/* Try to get volume label as well... */
if (GetVolumeInformationW(wline, wline + 4, FILE_MAXDIR - 4, nullptr, nullptr, nullptr, nullptr, 0)) {
const size_t labelLen = std::wcslen(wline + 4);
_snwprintf(wline + 4 + labelLen, FILE_MAXDIR - 4 - labelLen, L" (%.2s)", wline);
name = wline + 4;
}
}
wline[2] = L'\0';
if (name == nullptr) {
ret.push_back(NameFromPath(wline));
} else {
ret.emplace_back(wline, hecl::WideToUTF8(name));
}
}
}
/* Adding Desktop and My Documents */
SystemString wpath;
SHGetSpecialFolderPathW(nullptr, wline, CSIDL_PERSONAL, 0);
wpath.assign(wline);
SanitizePath(wpath);
ret.push_back(NameFromPath(wpath));
SHGetSpecialFolderPathW(nullptr, wline, CSIDL_DESKTOPDIRECTORY, 0);
wpath.assign(wline);
SanitizePath(wpath);
ret.push_back(NameFromPath(wpath));
}
#endif
#else
#ifdef __APPLE__
{
hecl::Sstat theStat;
const char* home = getenv("HOME");
if (home) {
ret.push_back(NameFromPath(home));
std::string desktop(home);
desktop += "/Desktop";
if (!hecl::Stat(desktop.c_str(), &theStat))
ret.push_back(NameFromPath(desktop));
}
/* Get mounted volumes better method OSX 10.6 and higher, see: */
/*https://developer.apple.com/library/mac/#documentation/CoreFOundation/Reference/CFURLRef/Reference/reference.html*/
/* we get all volumes sorted including network and do not relay on user-defined finder visibility, less confusing */
CFURLRef cfURL = nullptr;
CFURLEnumeratorResult result = kCFURLEnumeratorSuccess;
CFURLEnumeratorRef volEnum =
CFURLEnumeratorCreateForMountedVolumes(nullptr, kCFURLEnumeratorSkipInvisibles, nullptr);
while (result != kCFURLEnumeratorEnd) {
char defPath[1024];
result = CFURLEnumeratorGetNextURL(volEnum, &cfURL, nullptr);
if (result != kCFURLEnumeratorSuccess) {
continue;
}
CFURLGetFileSystemRepresentation(cfURL, false, reinterpret_cast<UInt8*>(defPath), std::size(defPath));
ret.push_back(NameFromPath(defPath));
}
CFRelease(volEnum);
}
#else
/* unix */
{
hecl::Sstat theStat;
const char* home = getenv("HOME");
if (home) {
ret.push_back(NameFromPath(home));
std::string desktop(home);
desktop += "/Desktop";
if (!hecl::Stat(desktop.c_str(), &theStat))
ret.push_back(NameFromPath(desktop));
}
{
bool found = false;
#ifdef __linux__
/* Loop over mount points */
struct mntent* mnt;
FILE* fp = setmntent(MOUNTED, "r");
if (fp) {
while ((mnt = getmntent(fp))) {
if (strlen(mnt->mnt_fsname) < 4 || strncmp(mnt->mnt_fsname, "/dev", 4))
continue;
std::string mntStr(mnt->mnt_dir);
if (mntStr.size() > 1 && mntStr.back() == '/')
mntStr.pop_back();
ret.push_back(NameFromPath(mntStr));
found = true;
}
endmntent(fp);
}
#endif
/* Fallback */
if (!found)
ret.push_back(NameFromPath("/"));
}
}
#endif
#endif
return ret;
}
std::wstring Char16ToWide(std::u16string_view src) { return std::wstring(src.begin(), src.end()); }
/* recursive mkdir */
#if _WIN32
int RecursiveMakeDir(const SystemChar* dir) {
SystemChar tmp[1024];
/* copy path */
std::wcsncpy(tmp, dir, std::size(tmp));
const size_t len = std::wcslen(tmp);
if (len >= std::size(tmp)) {
return -1;
}
/* remove trailing slash */
if (tmp[len - 1] == '/' || tmp[len - 1] == '\\') {
tmp[len - 1] = 0;
}
/* recursive mkdir */
SystemChar* p = nullptr;
Sstat sb;
for (p = tmp + 1; *p; p++) {
if (*p == '/' || *p == '\\') {
*p = 0;
/* test path */
if (Stat(tmp, &sb) != 0) {
/* path does not exist - create directory */
if (!CreateDirectoryW(tmp, nullptr)) {
return -1;
}
} else if (!S_ISDIR(sb.st_mode)) {
/* not a directory */
return -1;
}
*p = '/';
}
}
/* test path */
if (Stat(tmp, &sb) != 0) {
/* path does not exist - create directory */
if (!CreateDirectoryW(tmp, nullptr)) {
return -1;
}
} else if (!S_ISDIR(sb.st_mode)) {
/* not a directory */
return -1;
}
return 0;
}
#else
int RecursiveMakeDir(const SystemChar* dir) {
SystemChar tmp[1024];
/* copy path */
std::strncpy(tmp, dir, std::size(tmp));
const size_t len = std::strlen(tmp);
if (len >= std::size(tmp)) {
return -1;
}
/* remove trailing slash */
if (tmp[len - 1] == '/') {
tmp[len - 1] = 0;
}
/* recursive mkdir */
SystemChar* p = nullptr;
Sstat sb;
for (p = tmp + 1; *p; p++) {
if (*p == '/') {
*p = 0;
/* test path */
if (Stat(tmp, &sb) != 0) {
/* path does not exist - create directory */
if (mkdir(tmp, 0755) < 0) {
return -1;
}
} else if (!S_ISDIR(sb.st_mode)) {
/* not a directory */
return -1;
}
*p = '/';
}
}
/* test path */
if (Stat(tmp, &sb) != 0) {
/* path does not exist - create directory */
if (mkdir(tmp, 0755) < 0) {
return -1;
}
} else if (!S_ISDIR(sb.st_mode)) {
/* not a directory */
return -1;
}
return 0;
}
#endif
const SystemChar* GetTmpDir() {
#ifdef _WIN32
#if WINDOWS_STORE
const wchar_t* TMPDIR = nullptr;
#else
const wchar_t* TMPDIR = _wgetenv(L"TEMP");
if (!TMPDIR)
TMPDIR = L"\\Temp";
#endif
#else
const char* TMPDIR = getenv("TMPDIR");
if (!TMPDIR)
TMPDIR = "/tmp";
#endif
return TMPDIR;
}
#if !WINDOWS_STORE
int RunProcess(const SystemChar* path, const SystemChar* const args[]) {
#ifdef _WIN32
SECURITY_ATTRIBUTES sattrs = {sizeof(SECURITY_ATTRIBUTES), nullptr, TRUE};
HANDLE consoleOutReadTmp = INVALID_HANDLE_VALUE;
HANDLE consoleOutWrite = INVALID_HANDLE_VALUE;
if (!CreatePipe(&consoleOutReadTmp, &consoleOutWrite, &sattrs, 0)) {
LogModule.report(logvisor::Fatal, FMT_STRING("Error with CreatePipe"));
return -1;
}
HANDLE consoleErrWrite = INVALID_HANDLE_VALUE;
if (!DuplicateHandle(GetCurrentProcess(), consoleOutWrite, GetCurrentProcess(), &consoleErrWrite, 0, TRUE,
DUPLICATE_SAME_ACCESS)) {
LogModule.report(logvisor::Fatal, FMT_STRING("Error with DuplicateHandle"));
CloseHandle(consoleOutReadTmp);
CloseHandle(consoleOutWrite);
return -1;
}
HANDLE consoleOutRead = INVALID_HANDLE_VALUE;
if (!DuplicateHandle(GetCurrentProcess(), consoleOutReadTmp, GetCurrentProcess(),
&consoleOutRead, // Address of new handle.
0, FALSE, // Make it uninheritable.
DUPLICATE_SAME_ACCESS)) {
LogModule.report(logvisor::Fatal, FMT_STRING("Error with DuplicateHandle"));
CloseHandle(consoleOutReadTmp);
CloseHandle(consoleOutWrite);
CloseHandle(consoleErrWrite);
return -1;
}
CloseHandle(consoleOutReadTmp);
hecl::SystemString cmdLine;
const SystemChar* const* arg = &args[1];
while (*arg) {
cmdLine += _SYS_STR(" \"");
cmdLine += *arg++;
cmdLine += _SYS_STR('"');
}
STARTUPINFO sinfo = {sizeof(STARTUPINFO)};
HANDLE nulHandle = CreateFileW(L"nul", GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, &sattrs, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, nullptr);
sinfo.dwFlags = STARTF_USESTDHANDLES;
sinfo.hStdInput = nulHandle;
sinfo.hStdError = consoleErrWrite;
sinfo.hStdOutput = consoleOutWrite;
PROCESS_INFORMATION pinfo = {};
if (!CreateProcessW(path, cmdLine.data(), nullptr, nullptr, TRUE, NORMAL_PRIORITY_CLASS, nullptr, nullptr, &sinfo,
&pinfo)) {
LPWSTR messageBuffer = nullptr;
FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, nullptr,
GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPWSTR)&messageBuffer, 0, nullptr);
LogModule.report(logvisor::Error, FMT_STRING(L"unable to launch process from {}: {}"), path, messageBuffer);
LocalFree(messageBuffer);
CloseHandle(nulHandle);
CloseHandle(consoleErrWrite);
CloseHandle(consoleOutWrite);
CloseHandle(consoleOutRead);
return -1;
}
CloseHandle(nulHandle);
CloseHandle(consoleErrWrite);
CloseHandle(consoleOutWrite);
bool consoleThreadRunning = true;
auto consoleThread = std::thread([=, &consoleThreadRunning]() {
CHAR lpBuffer[256];
DWORD nBytesRead;
DWORD nCharsWritten;
while (consoleThreadRunning) {
if (!ReadFile(consoleOutRead, lpBuffer, sizeof(lpBuffer), &nBytesRead, nullptr) || !nBytesRead) {
DWORD err = GetLastError();
if (err == ERROR_BROKEN_PIPE)
break; // pipe done - normal exit path.
else
LogModule.report(logvisor::Error, FMT_STRING("Error with ReadFile: {:08X}"), err); // Something bad happened.
}
// Display the character read on the screen.
auto lk = logvisor::LockLog();
if (!WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), lpBuffer, nBytesRead, &nCharsWritten, nullptr)) {
// LogModule.report(logvisor::Error, FMT_STRING("Error with WriteConsole: {:08X}"), GetLastError());
}
}
CloseHandle(consoleOutRead);
});
WaitForSingleObject(pinfo.hProcess, INFINITE);
DWORD ret;
if (!GetExitCodeProcess(pinfo.hProcess, &ret))
ret = -1;
consoleThreadRunning = false;
if (consoleThread.joinable())
consoleThread.join();
CloseHandle(pinfo.hProcess);
CloseHandle(pinfo.hThread);
return ret;
#else
pid_t pid = fork();
if (!pid) {
closefrom(3);
execvp(path, (char* const*)args);
exit(1);
}
int ret;
if (waitpid(pid, &ret, 0) < 0)
return -1;
if (WIFEXITED(ret))
return WEXITSTATUS(ret);
return -1;
#endif
}
#endif
} // namespace hecl
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