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progress on os (on files)

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ed
2025-02-07 19:05:04 -05:00
parent 475dd029e0
commit a4f915d27d
10 changed files with 564 additions and 552 deletions
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code/os/win32/os_win32.h
+180 -54
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@@ -1,13 +1,20 @@
#ifdef INTELLISENSE_DIRECTIVES
# pragma once
# include "base/base.h"
#endif
// Copyright (c) 2024 Epic Games Tools
// Licensed under the MIT license (https://opensource.org/license/mit/)
#ifndef OS_CORE_WIN32_H
#define OS_CORE_WIN32_H
////////////////////////////////
//~ rjf: Includes / Libraries
#ifndef NOMINMAX
#define NOMINMAX
#endif
#define WIN32_LEAN_AND_MEAN
#define WIN32_MEAN_AND_LEAN
#define VC_EXTRALEAN
#include <windows.h>
#include <windowsx.h>
#include <timeapi.h>
@@ -22,6 +29,10 @@
#pragma comment(lib, "shlwapi")
#pragma comment(lib, "comctl32")
#pragma comment(linker,"\"/manifestdependency:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"") // this is required for loading correct comctl32 dll file
#undef NOMINMAX
#undef WIN32_LEAN_AND_MEAN
#undef WIN32_MEAN_AND_LEAN
#undef VC_EXTRALEAN
////////////////////////////////
//~ rjf: File Iterator Types
@@ -29,45 +40,48 @@
typedef struct OS_W32_FileIter OS_W32_FileIter;
struct OS_W32_FileIter
{
HANDLE handle;
WIN32_FIND_DATAW find_data;
B32 is_volume_iter;
String8Array drive_strings;
U64 drive_strings_iter_idx;
HANDLE handle;
WIN32_FIND_DATAW find_data;
B32 is_volume_iter;
String8Array drive_strings;
U64 drive_strings_iter_idx;
};
StaticAssert(sizeof(Member(OS_FileIter, memory)) >= sizeof(OS_W32_FileIter), file_iter_memory_size);
md_static_assert(sizeof(member(OS_FileIter, memory)) >= sizeof(OS_W32_FileIter), file_iter_memory_size);
////////////////////////////////
//~ rjf: Entity Types
typedef enum OS_W32_EntityKind
typedef enum OS_W32_EntityKind OS_W32_EntityKind;
enum OS_W32_EntityKind
{
OS_W32_EntityKind_Null,
OS_W32_EntityKind_Thread,
OS_W32_EntityKind_Mutex,
OS_W32_EntityKind_RWMutex,
OS_W32_EntityKind_ConditionVariable,
}
OS_W32_EntityKind;
OS_W32_EntityKind_Null,
OS_W32_EntityKind_Thread,
OS_W32_EntityKind_Mutex,
OS_W32_EntityKind_RWMutex,
OS_W32_EntityKind_ConditionVariable,
};
typedef struct OS_W32_EntityThread OS_W32_EntityThread;
struct OS_W32_EntityThread
{
OS_ThreadFunctionType* func;
void* ptr;
HANDLE handle;
DWORD tid;
};
typedef struct OS_W32_Entity OS_W32_Entity;
struct OS_W32_Entity
{
OS_W32_Entity *next;
OS_W32_EntityKind kind;
union
{
struct
{
OS_ThreadFunctionType *func;
void *ptr;
HANDLE handle;
DWORD tid;
} thread;
CRITICAL_SECTION mutex;
SRWLOCK rw_mutex;
CONDITION_VARIABLE cv;
};
OS_W32_Entity* next;
OS_W32_EntityKind kind;
union
{
OS_W32_EntityThread thread;
CRITICAL_SECTION mutex;
SRWLOCK rw_mutex;
CONDITION_VARIABLE cv;
};
};
////////////////////////////////
@@ -76,47 +90,159 @@ struct OS_W32_Entity
typedef struct OS_W32_State OS_W32_State;
struct OS_W32_State
{
Arena *arena;
// rjf: info
OS_SystemInfo system_info;
OS_ProcessInfo process_info;
U64 microsecond_resolution;
// rjf: entity storage
CRITICAL_SECTION entity_mutex;
Arena *entity_arena;
OS_W32_Entity *entity_free;
Arena* arena;
// rjf: info
OS_SystemInfo system_info;
OS_ProcessInfo process_info;
U64 microsecond_resolution;
// rjf: entity storage
CRITICAL_SECTION entity_mutex;
Arena* entity_arena;
OS_W32_Entity* entity_free;
};
////////////////////////////////
//~ rjf: Globals
global OS_W32_State os_w32_state = {0};
MD_API extern OS_W32_State os_w32_state = {0};
////////////////////////////////
//~ rjf: File Info Conversion Helpers
internal FilePropertyFlags os_w32_file_property_flags_from_dwFileAttributes(DWORD dwFileAttributes);
internal void os_w32_file_properties_from_attribute_data(FileProperties *properties, WIN32_FILE_ATTRIBUTE_DATA *attributes);
inline FilePropertyFlags
os_w32_file_property_flags_from_dwFileAttributes(DWORD dwFileAttributes)
{
FilePropertyFlags flags = 0;
if (dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
flags |= FilePropertyFlag_IsFolder;
}
return flags;
}
inline void
os_w32_file_properties_from_attribute_data(FileProperties* properties, WIN32_FILE_ATTRIBUTE_DATA* attributes) {
properties->size = compose_64bit(attributes->nFileSizeHigh, attributes->nFileSizeLow);
os_w32_dense_time_from_file_time(&properties->created, &attributes->ftCreationTime);
os_w32_dense_time_from_file_time(&properties->modified, &attributes->ftLastWriteTime);
properties->flags = os_w32_file_property_flags_from_dwFileAttributes(attributes->dwFileAttributes);
}
////////////////////////////////
//~ rjf: Time Conversion Helpers
internal void os_w32_date_time_from_system_time(DateTime *out, SYSTEMTIME *in);
internal void os_w32_system_time_from_date_time(SYSTEMTIME *out, DateTime *in);
internal void os_w32_dense_time_from_file_time(DenseTime *out, FILETIME *in);
internal U32 os_w32_sleep_ms_from_endt_us(U64 endt_us);
void os_w32_date_time_from_system_time(DateTime* out, SYSTEMTIME* in);
void os_w32_system_time_from_date_time(SYSTEMTIME* out, DateTime* in);
void os_w32_dense_time_from_file_time (DenseTime* out, FILETIME* in);
MD_API U32 os_w32_sleep_ms_from_endt_us(U64 endt_us);
inline void
os_w32_date_time_from_system_time(DateTime* out, SYSTEMTIME* in)
{
out->year = in->wYear;
out->mon = in->wMonth - 1;
out->wday = in->wDayOfWeek;
out->day = in->wDay;
out->hour = in->wHour;
out->min = in->wMinute;
out->sec = in->wSecond;
out->msec = in->wMilliseconds;
}
inline void
os_w32_system_time_from_date_time(SYSTEMTIME* out, DateTime* in)
{
out->wYear = (WORD)(in->year);
out->wMonth = in->mon + 1;
out->wDay = in->day;
out->wHour = in->hour;
out->wMinute = in->min;
out->wSecond = in->sec;
out->wMilliseconds = in->msec;
}
inline void
os_w32_dense_time_from_file_time(DenseTime* out, FILETIME* in) {
SYSTEMTIME systime = {0};
DateTime date_time = {0};
FileTimeToSystemTime(in, &systime);
os_w32_date_time_from_system_time(&date_time, &systime);
*out = dense_time_from_date_time(date_time);
}
////////////////////////////////
//~ rjf: Entity Functions
internal OS_W32_Entity *os_w32_entity_alloc(OS_W32_EntityKind kind);
internal void os_w32_entity_release(OS_W32_Entity *entity);
MD_API OS_W32_Entity* os_w32_entity_alloc (OS_W32_EntityKind kind);
MD_API void os_w32_entity_release(OS_W32_Entity* entity);
inline void
os_w32_entity_release(OS_W32_Entity *entity) {
entity->kind = OS_W32_EntityKind_Null;
EnterCriticalSection(&os_w32_state.entity_mutex);
sll_stack_push(os_w32_state.entity_free, entity);
LeaveCriticalSection(&os_w32_state.entity_mutex);
}
////////////////////////////////
//~ rjf: Thread Entry Point
internal DWORD os_w32_thread_entry_point(void *ptr);
MD_API DWORD os_w32_thread_entry_point(void* ptr);
////////////////////////////////
//~ rjf: @os_hooks System/Process Info (Implemented Per-OS)
inline String8
os_get_current_path(Arena* arena) {
String8 name;
TempArena scratch = scratch_begin(&arena, 1);
{
DWORD length = GetCurrentDirectoryW(0, 0);
U16* memory = push_array_no_zero(scratch.arena, U16, length + 1);
length = GetCurrentDirectoryW(length + 1, (WCHAR*)memory);
name = str8_from_16(arena, str16(memory, length));
}
scratch_end(scratch);
return name;
}
////////////////////////////////
//~ rjf: @os_hooks Memory Allocation (Implemented Per-OS)
//- rjf: basic
force_inline void* os_reserve ( U64 size) { void* result = VirtualAlloc( 0, size, MEM_RESERVE, PAGE_READWRITE); return result; }
force_inline B32 os_commit (void* ptr, U64 size) { B32 result = (VirtualAlloc(ptr, size, MEM_COMMIT, PAGE_READWRITE) != 0); return result; }
force_inline void os_decommit(void* ptr, U64 size) { VirtualFree (ptr, size, MEM_DECOMMIT); }
inline void
os_release(void* ptr, U64 size) {
// NOTE(rjf): size not used - not necessary on Windows, but necessary for other OSes.
VirtualFree(ptr, 0, MEM_RELEASE);
}
//- rjf: large pages
inline void*
os_reserve_large(U64 size) {
// we commit on reserve because windows
void* result = VirtualAlloc(0, size, MEM_RESERVE|MEM_COMMIT|MEM_LARGE_PAGES, PAGE_READWRITE);
return result;
}
inline B32 os_commit_large(void *ptr, U64 size) { return 1; }
////////////////////////////////
//~ rjf: @os_hooks Thread Info (Implemented Per-OS)
inline U32 os_tid(void) { DWORD id = GetCurrentThreadId(); return (U32)id; }
////////////////////////////////
//~ rjf: @os_hooks Aborting (Implemented Per-OS)
inline void os_abort(S32 exit_code) { ExitProcess(exit_code); }
#endif // OS_CORE_WIN32_H