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DN/OS/dn_os.cpp
doylet 2371297dda 2025 spring cleaning
2025-05-12 17:09:03 +10:00

735 lines
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#define DN_OS_CPP
static DN_OSCore *g_dn_os_core_;
static void DN_OS_LOGEmitFromTypeTypeFV_(DN_LOGTypeParam type, void *user_data, DN_CallSite call_site, DN_FMT_ATTRIB char const *fmt, va_list args)
{
DN_Assert(user_data);
DN_OSCore *core = DN_CAST(DN_OSCore *)user_data;
// NOTE: Open log file for appending if requested ////////////////////////////////////////////////
DN_TicketMutex_Begin(&core->log_file_mutex);
if (core->log_to_file && !core->log_file.handle && !core->log_file.error) {
DN_OSTLSTMem tmem = DN_OS_TLSTMem(nullptr);
DN_MSVC_WARNING_PUSH
DN_MSVC_WARNING_DISABLE(6284) // Object passed as _Param_(3) when a string is required in call to 'DN_OS_PathF' Actual type: 'struct DN_Str8'.
DN_Str8 log_path = DN_OS_PathF(tmem.arena, "%S/dn.log", DN_OS_EXEDir(tmem.arena));
DN_MSVC_WARNING_POP
core->log_file = DN_OS_FileOpen(log_path, DN_OSFileOpen_CreateAlways, DN_OSFileAccess_AppendOnly, nullptr);
}
DN_TicketMutex_End(&core->log_file_mutex);
DN_LOGStyle style = {};
if (!core->log_no_colour) {
style.colour = true;
style.bold = DN_LOGBold_Yes;
if (type.is_u32_enum) {
switch (type.u32) {
case DN_LOGType_Debug: {
style.colour = false;
style.bold = DN_LOGBold_No;
} break;
case DN_LOGType_Info: {
style.g = 0x87;
style.b = 0xff;
} break;
case DN_LOGType_Warning: {
style.r = 0xff;
style.g = 0xff;
} break;
case DN_LOGType_Error: {
style.r = 0xff;
} break;
}
}
}
DN_OSDateTime os_date = DN_OS_DateLocalTimeNow();
DN_LOGDate log_date = {};
log_date.year = os_date.year;
log_date.month = os_date.month;
log_date.day = os_date.day;
log_date.hour = os_date.hour;
log_date.minute = os_date.minutes;
log_date.second = os_date.seconds;
char prefix_buffer[128] = {};
DN_LOGPrefixSize prefix_size = DN_LOG_MakePrefix(style, type, call_site, log_date, prefix_buffer, sizeof(prefix_buffer));
va_list args_copy;
va_copy(args_copy, args);
DN_TicketMutex_Begin(&core->log_file_mutex);
{
DN_OS_FileWrite(&core->log_file, DN_Str8_Init(prefix_buffer, prefix_size.size), nullptr);
DN_OS_FileWriteF(&core->log_file, nullptr, "%*s ", DN_CAST(int)prefix_size.padding, "");
DN_OS_FileWriteFV(&core->log_file, nullptr, fmt, args_copy);
DN_OS_FileWrite(&core->log_file, DN_STR8("\n"), nullptr);
}
DN_TicketMutex_End(&core->log_file_mutex);
va_end(args_copy);
DN_OSPrintDest dest = (type.is_u32_enum && type.u32 == DN_LOGType_Error) ? DN_OSPrintDest_Err : DN_OSPrintDest_Out;
DN_OS_Print(dest, DN_Str8_Init(prefix_buffer, prefix_size.size));
DN_OS_PrintF(dest, "%*s ", DN_CAST(int)prefix_size.padding, "");
DN_OS_PrintLnFV(dest, fmt, args);
}
DN_API void DN_OS_Init(DN_OSCore *os, DN_OSInitArgs *args)
{
g_dn_os_core_ = os;
// NOTE: OS
{
#if defined(DN_PLATFORM_WIN32)
SYSTEM_INFO system_info = {};
GetSystemInfo(&system_info);
os->page_size = system_info.dwPageSize;
os->alloc_granularity = system_info.dwAllocationGranularity;
QueryPerformanceFrequency(&os->win32_qpc_frequency);
HMODULE module = LoadLibraryA("kernel32.dll");
os->win32_set_thread_description = DN_CAST(DN_WinSetThreadDescriptionFunc *) GetProcAddress(module, "SetThreadDescription");
FreeLibrary(module);
#else
// TODO(doyle): Get the proper page size from the OS.
os->page_size = DN_Kilobytes(4);
os->alloc_granularity = DN_Kilobytes(64);
#endif
}
// NOTE: Setup logging
DN_OS_EmitLogsWithOSPrintFunctions(os);
#if defined(DN_PLATFORM_WIN32)
// NOTE: win32 bcrypt
{
wchar_t const BCRYPT_ALGORITHM[] = L"RNG";
long /*NTSTATUS*/ init_status = BCryptOpenAlgorithmProvider(&os->win32_bcrypt_rng_handle, BCRYPT_ALGORITHM, nullptr /*implementation*/, 0 /*flags*/);
if (os->win32_bcrypt_rng_handle && init_status == 0)
os->win32_bcrypt_init_success = true;
else
DN_LOG_ErrorF("Failed to initialise Windows secure random number generator, error: %d", init_status);
}
#endif
// NOTE: Initialise tmem arenas which allocate memory and will be
// recorded to the now initialised allocation table. The initialisation
// of tmem memory may request tmem memory itself in leak tracing mode.
// This is supported as the tmem arenas defer allocation tracking until
// initialisation is done.
DN_OSTLSInitArgs tls_init_args = {};
if (args) {
tls_init_args.commit = args->tls_commit;
tls_init_args.reserve = args->tls_reserve;
tls_init_args.err_sink_reserve = args->tls_err_sink_reserve;
tls_init_args.err_sink_commit = args->tls_err_sink_commit;
}
DN_OS_TLSInit(&os->tls, tls_init_args);
DN_OS_TLSSetCurrentThreadTLS(&os->tls);
os->cpu_report = DN_CPU_Report();
#define DN_CPU_FEAT_XENTRY(label) g_dn_cpu_feature_decl[DN_CPUFeature_##label] = {DN_CPUFeature_##label, DN_STR8(#label)};
DN_CPU_FEAT_XMACRO
#undef DN_CPU_FEAT_XENTRY
DN_Assert(g_dn_os_core_);
}
DN_API void DN_OS_EmitLogsWithOSPrintFunctions(DN_OSCore *os)
{
DN_Assert(os);
DN_LOG_SetEmitFromTypeFVFunc(DN_OS_LOGEmitFromTypeTypeFV_, os);
}
DN_API void DN_OS_DumpThreadContextArenaStat(DN_Str8 file_path)
{
#if defined(DN_DEBUG_THREAD_CONTEXT)
// NOTE: Open a file to write the arena stats to
FILE *file = nullptr;
fopen_s(&file, file_path.data, "a+b");
if (file) {
DN_LOG_ErrorF("Failed to dump thread context arenas [file=%.*s]", DN_STR_FMT(file_path));
return;
}
// NOTE: Copy the stats from library book-keeping
// NOTE: Extremely short critical section, copy the stats then do our
// work on it.
DN_ArenaStat stats[DN_CArray_CountI(g_dn_core->thread_context_arena_stats)];
int stats_size = 0;
DN_TicketMutex_Begin(&g_dn_core->thread_context_mutex);
stats_size = g_dn_core->thread_context_arena_stats_count;
DN_Memcpy(stats, g_dn_core->thread_context_arena_stats, sizeof(stats[0]) * stats_size);
DN_TicketMutex_End(&g_dn_core->thread_context_mutex);
// NOTE: Print the cumulative stat
DN_DateHMSTimeStr now = DN_Date_HMSLocalTimeStrNow();
fprintf(file,
"Time=%.*s %.*s | Thread Context Arenas | Count=%d\n",
now.date_size,
now.date,
now.hms_size,
now.hms,
g_dn_core->thread_context_arena_stats_count);
// NOTE: Write the cumulative thread arena data
{
DN_ArenaStat stat = {};
for (DN_USize index = 0; index < stats_size; index++) {
DN_ArenaStat const *current = stats + index;
stat.capacity += current->capacity;
stat.used += current->used;
stat.wasted += current->wasted;
stat.blocks += current->blocks;
stat.capacity_hwm = DN_Max(stat.capacity_hwm, current->capacity_hwm);
stat.used_hwm = DN_Max(stat.used_hwm, current->used_hwm);
stat.wasted_hwm = DN_Max(stat.wasted_hwm, current->wasted_hwm);
stat.blocks_hwm = DN_Max(stat.blocks_hwm, current->blocks_hwm);
}
DN_ArenaStatStr stats_string = DN_Arena_StatStr(&stat);
fprintf(file, " [ALL] CURR %.*s\n", stats_string.size, stats_string.data);
}
// NOTE: Print individual thread arena data
for (DN_USize index = 0; index < stats_size; index++) {
DN_ArenaStat const *current = stats + index;
DN_ArenaStatStr current_string = DN_Arena_StatStr(current);
fprintf(file, " [%03d] CURR %.*s\n", DN_CAST(int) index, current_string.size, current_string.data);
}
fclose(file);
DN_LOG_InfoF("Dumped thread context arenas [file=%.*s]", DN_STR_FMT(file_path));
#else
(void)file_path;
#endif // #if defined(DN_DEBUG_THREAD_CONTEXT)
}
// NOTE: Date //////////////////////////////////////////////////////////////////////////////////////
DN_API DN_OSDateTimeStr8 DN_OS_DateLocalTimeStr8(DN_OSDateTime time, char date_separator, char hms_separator)
{
DN_OSDateTimeStr8 result = {};
result.hms_size = DN_CAST(uint8_t) DN_SNPrintF(result.hms,
DN_ArrayCountI(result.hms),
"%02hhu%c%02hhu%c%02hhu",
time.hour,
hms_separator,
time.minutes,
hms_separator,
time.seconds);
result.date_size = DN_CAST(uint8_t) DN_SNPrintF(result.date,
DN_ArrayCountI(result.date),
"%hu%c%02hhu%c%02hhu",
time.year,
date_separator,
time.month,
date_separator,
time.day);
DN_Assert(result.hms_size < DN_ArrayCountU(result.hms));
DN_Assert(result.date_size < DN_ArrayCountU(result.date));
return result;
}
DN_API DN_OSDateTimeStr8 DN_OS_DateLocalTimeStr8Now(char date_separator, char hms_separator)
{
DN_OSDateTime time = DN_OS_DateLocalTimeNow();
DN_OSDateTimeStr8 result = DN_OS_DateLocalTimeStr8(time, date_separator, hms_separator);
return result;
}
DN_API uint64_t DN_OS_DateUnixTimeS()
{
uint64_t result = DN_OS_DateUnixTimeNs() / (1'000 /*us*/ * 1'000 /*ms*/ * 1'000 /*s*/);
return result;
}
DN_API bool DN_OS_DateIsValid(DN_OSDateTime date)
{
if (date.year < 1970)
return false;
if (date.month <= 0 || date.month >= 13)
return false;
if (date.day <= 0 || date.day >= 32)
return false;
if (date.hour >= 24)
return false;
if (date.minutes >= 60)
return false;
if (date.seconds >= 60)
return false;
return true;
}
// NOTE: Other /////////////////////////////////////////////////////////////////////////////////////
DN_API DN_Str8 DN_OS_EXEDir(DN_Arena *arena)
{
DN_Str8 result = {};
if (!arena)
return result;
DN_OSTLSTMem tmem = DN_OS_TLSTMem(arena);
DN_Str8 exe_path = DN_OS_EXEPath(tmem.arena);
DN_Str8 separators[] = {DN_STR8("/"), DN_STR8("\\")};
DN_Str8BinarySplitResult split = DN_Str8_BinarySplitLastArray(exe_path, separators, DN_ArrayCountU(separators));
result = DN_Str8_Copy(arena, split.lhs);
return result;
}
// NOTE: Counters //////////////////////////////////////////////////////////////////////////////////
DN_API DN_F64 DN_OS_PerfCounterS(uint64_t begin, uint64_t end)
{
uint64_t frequency = DN_OS_PerfCounterFrequency();
uint64_t ticks = end - begin;
DN_F64 result = ticks / DN_CAST(DN_F64) frequency;
return result;
}
DN_API DN_F64 DN_OS_PerfCounterMs(uint64_t begin, uint64_t end)
{
uint64_t frequency = DN_OS_PerfCounterFrequency();
uint64_t ticks = end - begin;
DN_F64 result = (ticks * 1'000) / DN_CAST(DN_F64) frequency;
return result;
}
DN_API DN_F64 DN_OS_PerfCounterUs(uint64_t begin, uint64_t end)
{
uint64_t frequency = DN_OS_PerfCounterFrequency();
uint64_t ticks = end - begin;
DN_F64 result = (ticks * 1'000'000) / DN_CAST(DN_F64) frequency;
return result;
}
DN_API DN_F64 DN_OS_PerfCounterNs(uint64_t begin, uint64_t end)
{
uint64_t frequency = DN_OS_PerfCounterFrequency();
uint64_t ticks = end - begin;
DN_F64 result = (ticks * 1'000'000'000) / DN_CAST(DN_F64) frequency;
return result;
}
DN_API DN_OSTimer DN_OS_TimerBegin()
{
DN_OSTimer result = {};
result.start = DN_OS_PerfCounterNow();
return result;
}
DN_API void DN_OS_TimerEnd(DN_OSTimer *timer)
{
timer->end = DN_OS_PerfCounterNow();
}
DN_API DN_F64 DN_OS_TimerS(DN_OSTimer timer)
{
DN_F64 result = DN_OS_PerfCounterS(timer.start, timer.end);
return result;
}
DN_API DN_F64 DN_OS_TimerMs(DN_OSTimer timer)
{
DN_F64 result = DN_OS_PerfCounterMs(timer.start, timer.end);
return result;
}
DN_API DN_F64 DN_OS_TimerUs(DN_OSTimer timer)
{
DN_F64 result = DN_OS_PerfCounterUs(timer.start, timer.end);
return result;
}
DN_API DN_F64 DN_OS_TimerNs(DN_OSTimer timer)
{
DN_F64 result = DN_OS_PerfCounterNs(timer.start, timer.end);
return result;
}
DN_API uint64_t DN_OS_EstimateTSCPerSecond(uint64_t duration_ms_to_gauge_tsc_frequency)
{
uint64_t os_frequency = DN_OS_PerfCounterFrequency();
uint64_t os_target_elapsed = duration_ms_to_gauge_tsc_frequency * os_frequency / 1000ULL;
uint64_t tsc_begin = DN_CPU_TSC();
uint64_t result = 0;
if (tsc_begin) {
uint64_t os_elapsed = 0;
for (uint64_t os_begin = DN_OS_PerfCounterNow(); os_elapsed < os_target_elapsed;)
os_elapsed = DN_OS_PerfCounterNow() - os_begin;
uint64_t tsc_end = DN_CPU_TSC();
uint64_t tsc_elapsed = tsc_end - tsc_begin;
result = tsc_elapsed / os_elapsed * os_frequency;
}
return result;
}
#if !defined(DN_NO_OS_FILE_API)
// NOTE: DN_OSPathInfo/File ////////////////////////////////////////////////////////////////////////
DN_API bool DN_OS_FileIsOlderThan(DN_Str8 file, DN_Str8 check_against)
{
DN_OSPathInfo file_info = DN_OS_PathInfo(file);
DN_OSPathInfo check_against_info = DN_OS_PathInfo(check_against);
bool result = !file_info.exists || file_info.last_write_time_in_s < check_against_info.last_write_time_in_s;
return result;
}
DN_API bool DN_OS_FileWrite(DN_OSFile *file, DN_Str8 buffer, DN_OSErrSink *error)
{
bool result = DN_OS_FileWritePtr(file, buffer.data, buffer.size, error);
return result;
}
struct DN_OSFileWriteChunker_
{
DN_OSErrSink *err;
DN_OSFile *file;
bool success;
};
static char *DN_OS_FileWriteChunker_(const char *buf, void *user, int len)
{
DN_OSFileWriteChunker_ *chunker = DN_CAST(DN_OSFileWriteChunker_ *)user;
chunker->success = DN_OS_FileWritePtr(chunker->file, buf, len, chunker->err);
char *result = chunker->success ? DN_CAST(char *) buf : nullptr;
return result;
}
DN_API bool DN_OS_FileWriteFV(DN_OSFile *file, DN_OSErrSink *error, DN_FMT_ATTRIB char const *fmt, va_list args)
{
bool result = false;
if (!file || !fmt)
return result;
DN_OSFileWriteChunker_ chunker = {};
chunker.err = error;
chunker.file = file;
char buffer[STB_SPRINTF_MIN];
STB_SPRINTF_DECORATE(vsprintfcb)(DN_OS_FileWriteChunker_, &chunker, buffer, fmt, args);
result = chunker.success;
return result;
}
DN_API bool DN_OS_FileWriteF(DN_OSFile *file, DN_OSErrSink *error, DN_FMT_ATTRIB char const *fmt, ...)
{
va_list args;
va_start(args, fmt);
bool result = DN_OS_FileWriteFV(file, error, fmt, args);
va_end(args);
return result;
}
// NOTE: R/W Entire File ///////////////////////////////////////////////////////////////////////////
DN_API DN_Str8 DN_OS_ReadAll(DN_Arena *arena, DN_Str8 path, DN_OSErrSink *error)
{
DN_Str8 result = {};
if (!arena)
return result;
// NOTE: Query file size + allocate buffer /////////////////////////////////////////////////////
DN_OSPathInfo path_info = DN_OS_PathInfo(path);
if (!path_info.exists) {
DN_OS_ErrSinkAppendF(error, 1, "File does not exist/could not be queried for reading '%.*s'", DN_STR_FMT(path));
return result;
}
DN_ArenaTempMem temp_mem = DN_Arena_TempMemBegin(arena);
result = DN_Str8_Alloc(arena, path_info.size, DN_ZeroMem_No);
if (!DN_Str8_HasData(result)) {
DN_OSTLSTMem tmem = DN_OS_TLSTMem(nullptr);
DN_Str8 buffer_size_str8 = DN_CVT_U64ToByteSizeStr8(tmem.arena, path_info.size, DN_CVTU64ByteSizeType_Auto);
DN_OS_ErrSinkAppendF(error, 1 /*error_code*/, "Failed to allocate %.*s for reading file '%.*s'", DN_STR_FMT(buffer_size_str8), DN_STR_FMT(path));
DN_Arena_TempMemEnd(temp_mem);
result = {};
return result;
}
// NOTE: Read the file from disk ///////////////////////////////////////////////////////////////
DN_OSFile file = DN_OS_FileOpen(path, DN_OSFileOpen_OpenIfExist, DN_OSFileAccess_Read, error);
DN_OSFileRead read = DN_OS_FileRead(&file, result.data, result.size, error);
if (file.error || !read.success) {
DN_Arena_TempMemEnd(temp_mem);
result = {};
}
DN_OS_FileClose(&file);
return result;
}
DN_API bool DN_OS_WriteAll(DN_Str8 path, DN_Str8 buffer, DN_OSErrSink *error)
{
DN_OSFile file = DN_OS_FileOpen(path, DN_OSFileOpen_CreateAlways, DN_OSFileAccess_Write, error);
bool result = DN_OS_FileWrite(&file, buffer, error);
DN_OS_FileClose(&file);
return result;
}
DN_API bool DN_OS_WriteAllFV(DN_Str8 file_path, DN_OSErrSink *error, DN_FMT_ATTRIB char const *fmt, va_list args)
{
DN_OSTLSTMem tmem = DN_OS_TLSTMem(nullptr);
DN_Str8 buffer = DN_Str8_InitFV(tmem.arena, fmt, args);
bool result = DN_OS_WriteAll(file_path, buffer, error);
return result;
}
DN_API bool DN_OS_WriteAllF(DN_Str8 file_path, DN_OSErrSink *error, DN_FMT_ATTRIB char const *fmt, ...)
{
va_list args;
va_start(args, fmt);
bool result = DN_OS_WriteAllFV(file_path, error, fmt, args);
va_end(args);
return result;
}
DN_API bool DN_OS_WriteAllSafe(DN_Str8 path, DN_Str8 buffer, DN_OSErrSink *error)
{
DN_OSTLSTMem tmem = DN_OS_TLSTMem(nullptr);
DN_Str8 tmp_path = DN_Str8_InitF(tmem.arena, "%.*s.tmp", DN_STR_FMT(path));
if (!DN_OS_WriteAll(tmp_path, buffer, error))
return false;
if (!DN_OS_CopyFile(tmp_path, path, true /*overwrite*/, error))
return false;
if (!DN_OS_PathDelete(tmp_path))
return false;
return true;
}
DN_API bool DN_OS_WriteAllSafeFV(DN_Str8 path, DN_OSErrSink *error, DN_FMT_ATTRIB char const *fmt, va_list args)
{
DN_OSTLSTMem tmem = DN_OS_TLSTMem(nullptr);
DN_Str8 buffer = DN_Str8_InitFV(tmem.arena, fmt, args);
bool result = DN_OS_WriteAllSafe(path, buffer, error);
return result;
}
DN_API bool DN_OS_WriteAllSafeF(DN_Str8 path, DN_OSErrSink *error, DN_FMT_ATTRIB char const *fmt, ...)
{
va_list args;
va_start(args, fmt);
bool result = DN_OS_WriteAllSafeFV(path, error, fmt, args);
return result;
}
#endif // !defined(DN_NO_OS_FILE_API)
// NOTE: DN_OSPath /////////////////////////////////////////////////////////////////////////////////
DN_API bool DN_OS_PathAddRef(DN_Arena *arena, DN_OSPath *fs_path, DN_Str8 path)
{
if (!arena || !fs_path || !DN_Str8_HasData(path))
return false;
if (path.size <= 0)
return true;
DN_Str8 const delimiter_array[] = {
DN_STR8("\\"),
DN_STR8("/")};
if (fs_path->links_size == 0)
fs_path->has_prefix_path_separator = (path.data[0] == '/');
for (;;) {
DN_Str8BinarySplitResult delimiter = DN_Str8_BinarySplitArray(path, delimiter_array, DN_ArrayCountU(delimiter_array));
for (; delimiter.lhs.data; delimiter = DN_Str8_BinarySplitArray(delimiter.rhs, delimiter_array, DN_ArrayCountU(delimiter_array))) {
if (delimiter.lhs.size <= 0)
continue;
DN_OSPathLink *link = DN_Arena_New(arena, DN_OSPathLink, DN_ZeroMem_Yes);
if (!link)
return false;
link->string = delimiter.lhs;
link->prev = fs_path->tail;
if (fs_path->tail)
fs_path->tail->next = link;
else
fs_path->head = link;
fs_path->tail = link;
fs_path->links_size += 1;
fs_path->string_size += delimiter.lhs.size;
}
if (!delimiter.lhs.data)
break;
}
return true;
}
DN_API bool DN_OS_PathAdd(DN_Arena *arena, DN_OSPath *fs_path, DN_Str8 path)
{
DN_Str8 copy = DN_Str8_Copy(arena, path);
bool result = DN_Str8_HasData(copy) ? true : DN_OS_PathAddRef(arena, fs_path, copy);
return result;
}
DN_API bool DN_OS_PathAddF(DN_Arena *arena, DN_OSPath *fs_path, DN_FMT_ATTRIB char const *fmt, ...)
{
va_list args;
va_start(args, fmt);
DN_Str8 path = DN_Str8_InitFV(arena, fmt, args);
va_end(args);
bool result = DN_OS_PathAddRef(arena, fs_path, path);
return result;
}
DN_API bool DN_OS_PathPop(DN_OSPath *fs_path)
{
if (!fs_path)
return false;
if (fs_path->tail) {
DN_Assert(fs_path->head);
fs_path->links_size -= 1;
fs_path->string_size -= fs_path->tail->string.size;
fs_path->tail = fs_path->tail->prev;
if (fs_path->tail)
fs_path->tail->next = nullptr;
else
fs_path->head = nullptr;
} else {
DN_Assert(!fs_path->head);
}
return true;
}
DN_API DN_Str8 DN_OS_PathTo(DN_Arena *arena, DN_Str8 path, DN_Str8 path_separator)
{
DN_OSPath fs_path = {};
DN_OS_PathAddRef(arena, &fs_path, path);
DN_Str8 result = DN_OS_PathBuildWithSeparator(arena, &fs_path, path_separator);
return result;
}
DN_API DN_Str8 DN_OS_PathToF(DN_Arena *arena, DN_Str8 path_separator, DN_FMT_ATTRIB char const *fmt, ...)
{
DN_OSTLSTMem tmem = DN_OS_TLSTMem(arena);
va_list args;
va_start(args, fmt);
DN_Str8 path = DN_Str8_InitFV(tmem.arena, fmt, args);
va_end(args);
DN_Str8 result = DN_OS_PathTo(arena, path, path_separator);
return result;
}
DN_API DN_Str8 DN_OS_Path(DN_Arena *arena, DN_Str8 path)
{
DN_Str8 result = DN_OS_PathTo(arena, path, DN_OSPathSeperatorString);
return result;
}
DN_API DN_Str8 DN_OS_PathF(DN_Arena *arena, DN_FMT_ATTRIB char const *fmt, ...)
{
DN_OSTLSTMem tmem = DN_OS_TLSTMem(arena);
va_list args;
va_start(args, fmt);
DN_Str8 path = DN_Str8_InitFV(tmem.arena, fmt, args);
va_end(args);
DN_Str8 result = DN_OS_Path(arena, path);
return result;
}
DN_API DN_Str8 DN_OS_PathBuildWithSeparator(DN_Arena *arena, DN_OSPath const *fs_path, DN_Str8 path_separator)
{
DN_Str8 result = {};
if (!fs_path || fs_path->links_size <= 0)
return result;
// NOTE: Each link except the last one needs the path separator appended to it, '/' or '\\'
DN_USize string_size = (fs_path->has_prefix_path_separator ? path_separator.size : 0) + fs_path->string_size + ((fs_path->links_size - 1) * path_separator.size);
result = DN_Str8_Alloc(arena, string_size, DN_ZeroMem_No);
if (result.data) {
char *dest = result.data;
if (fs_path->has_prefix_path_separator) {
DN_Memcpy(dest, path_separator.data, path_separator.size);
dest += path_separator.size;
}
for (DN_OSPathLink *link = fs_path->head; link; link = link->next) {
DN_Str8 string = link->string;
DN_Memcpy(dest, string.data, string.size);
dest += string.size;
if (link != fs_path->tail) {
DN_Memcpy(dest, path_separator.data, path_separator.size);
dest += path_separator.size;
}
}
}
result.data[string_size] = 0;
return result;
}
// NOTE: DN_OSExec /////////////////////////////////////////////////////////////////////////////////
DN_API DN_OSExecResult DN_OS_Exec(DN_Slice<DN_Str8> cmd_line,
DN_OSExecArgs *args,
DN_Arena *arena,
DN_OSErrSink *error)
{
DN_OSExecAsyncHandle async_handle = DN_OS_ExecAsync(cmd_line, args, error);
DN_OSExecResult result = DN_OS_ExecWait(async_handle, arena, error);
return result;
}
DN_API DN_OSExecResult DN_OS_ExecOrAbort(DN_Slice<DN_Str8> cmd_line, DN_OSExecArgs *args, DN_Arena *arena)
{
DN_OSErrSink *error = DN_OS_ErrSinkBegin(DN_OSErrSinkMode_Nil);
DN_OSExecResult result = DN_OS_Exec(cmd_line, args, arena, error);
if (result.os_error_code)
DN_OS_ErrSinkEndAndExitIfErrorF(error, result.os_error_code, "OS failed to execute the requested command returning the error code %u", result.os_error_code);
if (result.exit_code)
DN_OS_ErrSinkEndAndExitIfErrorF(error, result.exit_code, "OS executed command and returned non-zero exit code %u", result.exit_code);
DN_OS_ErrSinkEndAndIgnore(error);
return result;
}
// NOTE: DN_OSThread ///////////////////////////////////////////////////////////////////////////////
static void DN_OS_ThreadExecute_(void *user_context)
{
DN_OSThread *thread = DN_CAST(DN_OSThread *) user_context;
DN_OS_TLSInit(&thread->tls, thread->tls_init_args);
DN_OS_TLSSetCurrentThreadTLS(&thread->tls);
DN_OS_SemaphoreWait(&thread->init_semaphore, DN_OS_SEMAPHORE_INFINITE_TIMEOUT);
thread->func(thread);
}
DN_API void DN_OS_ThreadSetName(DN_Str8 name)
{
DN_OSTLS *tls = DN_OS_TLSGet();
tls->name_size = DN_CAST(uint8_t) DN_Min(name.size, sizeof(tls->name) - 1);
DN_Memcpy(tls->name, name.data, tls->name_size);
tls->name[tls->name_size] = 0;
#if defined(DN_PLATFORM_WIN32)
DN_Win_ThreadSetName(name);
#else
DN_Posix_ThreadSetName(name);
#endif
}
// NOTE: DN_OSHttp /////////////////////////////////////////////////////////////////////////////////
DN_API void DN_OS_HttpRequestWait(DN_OSHttpResponse *response)
{
if (response && DN_OS_SemaphoreIsValid(&response->on_complete_semaphore))
DN_OS_SemaphoreWait(&response->on_complete_semaphore, DN_OS_SEMAPHORE_INFINITE_TIMEOUT);
}
DN_API DN_OSHttpResponse DN_OS_HttpRequest(DN_Arena *arena, DN_Str8 host, DN_Str8 path, DN_OSHttpRequestSecure secure, DN_Str8 method, DN_Str8 body, DN_Str8 headers)
{
// TODO(doyle): Revise the memory allocation and its lifetime
DN_OSHttpResponse result = {};
DN_OSTLSTMem tmem = DN_OS_TLSTMem(arena);
result.tmem_arena = tmem.arena;
DN_OS_HttpRequestAsync(&result, arena, host, path, secure, method, body, headers);
DN_OS_HttpRequestWait(&result);
return result;
}
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