#ifndef VG_PLATFORM_H
#define VG_PLATFORM_H
+#include "vg.h"
+#include "vg_stdint.h"
+
/* Copyright (C) 2021-2022 Harry Godden (hgn) - All Rights Reserved */
typedef unsigned int uint;
#define vg_static_assert _Static_assert
#define vg_list_size( A ) (sizeof(A)/sizeof(A[0]))
+#define VG_MUST_USE_RESULT __attribute__((warn_unused_result))
-/* Pthred emulation for windows */
-#ifdef _WIN32
+#ifdef _WIN32_NO
#include <windows.h>
- #define MUTEX_TYPE HANDLE
- #define MUTEX_INITIALIZER NULL
- #define MUTEX_SETUP(x) (x) = CreateMutex(NULL, FALSE, NULL)
-
- /* TODO: Why is this defined but never used? */
- #define MUTEX_CLEANUP(x) (CloseHandle(x))
- #define MUTEX_LOCK(x) emulate_pthread_mutex_lock(&(x))
- #define MUTEX_UNLOCK(x) (ReleaseMutex(x))
-
- int emulate_pthread_mutex_lock( volatile MUTEX_TYPE *mx )
- {
- if( *mx == NULL ) /* static initializer? */
- {
- HANDLE p = CreateMutex( NULL, FALSE, NULL );
- if( InterlockedCompareExchangePointer( (PVOID*)mx, (PVOID)p, NULL )
- != NULL )
- CloseHandle(p);
- }
-
- return WaitForSingleObject( *mx, INFINITE ) == WAIT_FAILED;
- }
+
+#ifdef I_THINK_THIS_IS_WHAT_MSCV_WANTS_BUT_HAVNT_TESTED_IT_YET
+
+ #define VG_DEPRECATED __declspec(deprecated)
+ #define VG_THREAD_LOCAL __declspec( thread )
+
+#else /* MINGW-64 */
+
+ #define VG_THREAD_LOCAL __thread
+ #define VG_DEPRECATED __attribute__((deprecated))
+
+#endif
+
+ typedef HANDLE vg_semaphore;
+ typedef HANDLE vg_mutex;
+ typedef u64 vg_timespec;
+
#else
#include <pthread.h>
- #define MUTEX_LOCK(x) pthread_mutex_lock(&(x))
- #define MUTEX_UNLOCK(x) pthread_mutex_unlock(&(x))
- #define MUTEX_TYPE pthread_mutex_t
- #define MUTEX_INITIALIZER {0}
+ #include <semaphore.h>
+
+ #define VG_DEPRECATED __attribute__((deprecated))
+ #define VG_THREAD_LOCAL __thread
+
+ typedef sem_t vg_semaphore;
+ typedef pthread_mutex_t vg_mutex;
+ typedef struct timespec vg_timespec;
+
#endif
+#include <stdlib.h>
+
+static void vg_fatal_exit_loop( const char *error );
+static void *vg_alloc( size_t size )
+{
+ void *ptr = malloc( size );
+
+ if( !ptr )
+ vg_fatal_exit_loop( "Out of memory" );
+
+ return ptr;
+}
-int vg_thread_run( void *pfunc, void *data )
+static void *vg_realloc( void *orig, size_t size )
+{
+ void *ptr = realloc( orig, size );
+
+ if( !ptr )
+ vg_fatal_exit_loop( "Out of memory" );
+
+ return ptr;
+}
+
+/* seems to be a GCC bug when inlining this, its low priority anyway */
+__attribute__ ((noinline))
+static void vg_free( void *ptr )
+{
+ free( ptr );
+}
+
+static void vg_required( void *ptr, const char *path )
+{
+ if( !ptr )
+ {
+ vg_fatal_exit_loop( path );
+ }
+}
+
+#define VG_REQUIRED_ASSET( TYPE, DECL, FN, PATH, ... ) \
+ TYPE DECL = FN( PATH,##__VA_ARGS__ ); \
+ vg_required( DECL, "Resource is required but failed to load: '" PATH "'" );
+
+VG_DEPRECATED
+void *malloc( size_t size );
+
+VG_DEPRECATED
+void *realloc( void *orig, size_t size );
+
+VG_DEPRECATED
+void free( void *ptr );
+
+#include <stdio.h>
+#include <dirent.h>
+#include <string.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <math.h>
+#include <assert.h>
+
+static int vg_thread_run( void *pfunc, void *data );
+static void vg_thread_exit(void);
+static void vg_set_thread_name( const char *name );
+static int vg_semaphore_init( vg_semaphore *sem, u32 value );
+static int vg_semaphore_trywait( vg_semaphore *sem );
+static int vg_semaphore_wait( vg_semaphore *sem );
+static int vg_semaphore_post( vg_semaphore *sem );
+static void vg_semaphore_free( vg_semaphore *sem );
+static int vg_mutex_init( vg_mutex *mutex );
+static int vg_mutex_lock( vg_mutex *mutex );
+static int vg_mutex_unlock( vg_mutex *mutex );
+static void vg_mutex_free( vg_mutex *mutex );
+static void vg_sleep_ms( long msec );
+static double vg_time_diff( vg_timespec start, vg_timespec end );
+
+#ifdef _WIN32_NO
+
+static int vg_thread_run( void *pfunc, void *data )
{
-#ifdef _WIN32
HANDLE hThread = CreateThread
(
NULL, /* Thread attributes */
CloseHandle( hThread );
return 0;
}
+}
+
+static void vg_thread_exit(void)
+{
+ ExitThread(0);
+}
+
+static void vg_set_thread_name( const char *name )
+{
+ /* I believe this is a meaningless concept in windows */
+}
+
+static int vg_semaphore_init( vg_semaphore *sem, u32 value );
+static int vg_semaphore_trywait( vg_semaphore *sem );
+static int vg_semaphore_wait( vg_semaphore *sem );
+static int vg_semaphore_post( vg_semaphore *sem );
+static void vg_semaphore_free( vg_semaphore *sem );
+static int vg_mutex_init( vg_mutex *mutex );
+static int vg_mutex_lock( vg_mutex *mutex );
+static int vg_mutex_unlock( vg_mutex *mutex );
+static void vg_mutex_free( vg_mutex *mutex );
+static void vg_sleep_ms( long msec );
+static double vg_time_diff( vg_timespec start, vg_timespec end );
+
#else
+
+static int vg_thread_run( void *pfunc, void *data )
+{
pthread_t hThread;
if( pthread_create( &hThread, NULL, pfunc, data ) )
{
pthread_detach( hThread );
return 0;
}
+}
+
+
+static void vg_thread_exit(void)
+{
+ pthread_exit(NULL);
+}
+
+static void vg_set_thread_name( const char *name )
+{
+ /* not defined but links?? */
+#if 0
+ pthread_setname_np(pthread_self());
#endif
}
+static int vg_semaphore_init( vg_semaphore *sem, u32 value )
+{
+ return !sem_init( sem, 0, value );
+}
+
+static int vg_semaphore_trywait( vg_semaphore *sem )
+{
+ return !sem_trywait( sem );
+}
+
+static int vg_semaphore_wait( vg_semaphore *sem )
+{
+ return !sem_wait( sem );
+}
+
+static int vg_semaphore_post( vg_semaphore *sem )
+{
+ return !sem_post( sem );
+}
+
+static void vg_semaphore_free( vg_semaphore *sem )
+{
+ sem_destroy( sem );
+}
+
+static int vg_mutex_init( vg_mutex *mutex )
+{
+ memset( mutex, 0, sizeof(vg_mutex) );
+ return 1;
+}
+
+static int vg_mutex_lock( vg_mutex *mutex )
+{
+ if( !pthread_mutex_lock( mutex ) )
+ return 1;
+ else
+ return 0;
+}
+
+static int vg_mutex_unlock( vg_mutex *mutex )
+{
+ if( !pthread_mutex_unlock( mutex ) )
+ return 1;
+ else
+ return 0;
+}
+
+static void vg_mutex_free( vg_mutex *mutex )
+{
+
+}
+
static void vg_sleep_ms( long msec )
{
struct timespec ts;
}
#endif
+
+#define VG_MIN( A, B ) ((A)<(B)?(A):(B))
+#define VG_MAX( A, B ) ((A)>(B)?(A):(B))
+
+static void *buffer_reserve( void *buffer, u32 count, u32 *cap, u32 amount,
+ size_t emsize )
+{
+ if( count+amount > *cap )
+ {
+ *cap = VG_MAX( (*cap)*2, (*cap)+amount );
+ return vg_realloc( buffer, (*cap) * emsize );
+ }
+
+ return buffer;
+}
+
+static void *buffer_fix( void *buffer, u32 count, u32 *cap, size_t emsize )
+{
+ *cap = count;
+ return vg_realloc( buffer, (*cap) * emsize );
+}
+
+#endif
projects / vg.git / blobdiff