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/*
* kmp_stub.c -- stub versions of user-callable OpenMP RT functions.
*/
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.txt for details.
//
//===----------------------------------------------------------------------===//
#include <stdlib.h>
#include <limits.h>
#include <errno.h>
#include "omp.h" // Function renamings.
#include "kmp.h" // KMP_DEFAULT_STKSIZE
#include "kmp_stub.h"
#if KMP_OS_WINDOWS
#include <windows.h>
#else
#include <sys/time.h>
#endif
// Moved from omp.h
#define omp_set_max_active_levels ompc_set_max_active_levels
#define omp_set_schedule ompc_set_schedule
#define omp_get_ancestor_thread_num ompc_get_ancestor_thread_num
#define omp_get_team_size ompc_get_team_size
#define omp_set_num_threads ompc_set_num_threads
#define omp_set_dynamic ompc_set_dynamic
#define omp_set_nested ompc_set_nested
#define kmp_set_stacksize kmpc_set_stacksize
#define kmp_set_stacksize_s kmpc_set_stacksize_s
#define kmp_set_blocktime kmpc_set_blocktime
#define kmp_set_library kmpc_set_library
#define kmp_set_defaults kmpc_set_defaults
#define kmp_malloc kmpc_malloc
#define kmp_calloc kmpc_calloc
#define kmp_realloc kmpc_realloc
#define kmp_free kmpc_free
static double frequency = 0.0;
// Helper functions.
static size_t __kmps_init() {
static int initialized = 0;
static size_t dummy = 0;
if ( ! initialized ) {
// TODO: Analyze KMP_VERSION environment variable, print __kmp_version_copyright and
// __kmp_version_build_time.
// WARNING: Do not use "fprintf( stderr, ... )" because it will cause unresolved "__iob"
// symbol (see C70080). We need to extract __kmp_printf() stuff from kmp_runtime.c and use
// it.
// Trick with dummy variable forces linker to keep __kmp_version_copyright and
// __kmp_version_build_time strings in executable file (in case of static linkage).
// When KMP_VERSION analyze is implemented, dummy variable should be deleted, function
// should return void.
dummy = __kmp_version_copyright - __kmp_version_build_time;
#if KMP_OS_WINDOWS
LARGE_INTEGER freq;
BOOL status = QueryPerformanceFrequency( & freq );
if ( status ) {
frequency = double( freq.QuadPart );
}; // if
#endif
initialized = 1;
}; // if
return dummy;
}; // __kmps_init
#define i __kmps_init();
/* set API functions */
void omp_set_num_threads( omp_int_t num_threads ) { i; }
void omp_set_dynamic( omp_int_t dynamic ) { i; __kmps_set_dynamic( dynamic ); }
void omp_set_nested( omp_int_t nested ) { i; __kmps_set_nested( nested ); }
void omp_set_max_active_levels( omp_int_t max_active_levels ) { i; }
void omp_set_schedule( omp_sched_t kind, omp_int_t modifier ) { i; __kmps_set_schedule( (kmp_sched_t)kind, modifier ); }
int omp_get_ancestor_thread_num( omp_int_t level ) { i; return ( level ) ? ( -1 ) : ( 0 ); }
int omp_get_team_size( omp_int_t level ) { i; return ( level ) ? ( -1 ) : ( 1 ); }
int kmpc_set_affinity_mask_proc( int proc, void **mask ) { i; return -1; }
int kmpc_unset_affinity_mask_proc( int proc, void **mask ) { i; return -1; }
int kmpc_get_affinity_mask_proc( int proc, void **mask ) { i; return -1; }
/* kmp API functions */
void kmp_set_stacksize( omp_int_t arg ) { i; __kmps_set_stacksize( arg ); }
void kmp_set_stacksize_s( size_t arg ) { i; __kmps_set_stacksize( arg ); }
void kmp_set_blocktime( omp_int_t arg ) { i; __kmps_set_blocktime( arg ); }
void kmp_set_library( omp_int_t arg ) { i; __kmps_set_library( arg ); }
void kmp_set_defaults( char const * str ) { i; }
/* KMP memory management functions. */
void * kmp_malloc( size_t size ) { i; return malloc( size ); }
void * kmp_calloc( size_t nelem, size_t elsize ) { i; return calloc( nelem, elsize ); }
void * kmp_realloc( void *ptr, size_t size ) { i; return realloc( ptr, size ); }
void kmp_free( void * ptr ) { i; free( ptr ); }
static int __kmps_blocktime = INT_MAX;
void __kmps_set_blocktime( int arg ) {
i;
__kmps_blocktime = arg;
} // __kmps_set_blocktime
int __kmps_get_blocktime( void ) {
i;
return __kmps_blocktime;
} // __kmps_get_blocktime
static int __kmps_dynamic = 0;
void __kmps_set_dynamic( int arg ) {
i;
__kmps_dynamic = arg;
} // __kmps_set_dynamic
int __kmps_get_dynamic( void ) {
i;
return __kmps_dynamic;
} // __kmps_get_dynamic
static int __kmps_library = 1000;
void __kmps_set_library( int arg ) {
i;
__kmps_library = arg;
} // __kmps_set_library
int __kmps_get_library( void ) {
i;
return __kmps_library;
} // __kmps_get_library
static int __kmps_nested = 0;
void __kmps_set_nested( int arg ) {
i;
__kmps_nested = arg;
} // __kmps_set_nested
int __kmps_get_nested( void ) {
i;
return __kmps_nested;
} // __kmps_get_nested
static size_t __kmps_stacksize = KMP_DEFAULT_STKSIZE;
void __kmps_set_stacksize( int arg ) {
i;
__kmps_stacksize = arg;
} // __kmps_set_stacksize
int __kmps_get_stacksize( void ) {
i;
return __kmps_stacksize;
} // __kmps_get_stacksize
static kmp_sched_t __kmps_sched_kind = kmp_sched_default;
static int __kmps_sched_modifier = 0;
void __kmps_set_schedule( kmp_sched_t kind, int modifier ) {
i;
__kmps_sched_kind = kind;
__kmps_sched_modifier = modifier;
} // __kmps_set_schedule
void __kmps_get_schedule( kmp_sched_t *kind, int *modifier ) {
i;
*kind = __kmps_sched_kind;
*modifier = __kmps_sched_modifier;
} // __kmps_get_schedule
#if OMP_40_ENABLED
static kmp_proc_bind_t __kmps_proc_bind = proc_bind_false;
void __kmps_set_proc_bind( kmp_proc_bind_t arg ) {
i;
__kmps_proc_bind = arg;
} // __kmps_set_proc_bind
kmp_proc_bind_t __kmps_get_proc_bind( void ) {
i;
return __kmps_proc_bind;
} // __kmps_get_proc_bind
#endif /* OMP_40_ENABLED */
double __kmps_get_wtime( void ) {
// Elapsed wall clock time (in second) from "sometime in the past".
double wtime = 0.0;
i;
#if KMP_OS_WINDOWS
if ( frequency > 0.0 ) {
LARGE_INTEGER now;
BOOL status = QueryPerformanceCounter( & now );
if ( status ) {
wtime = double( now.QuadPart ) / frequency;
}; // if
}; // if
#else
// gettimeofday() returns seconds and microseconds since the Epoch.
struct timeval tval;
int rc;
rc = gettimeofday( & tval, NULL );
if ( rc == 0 ) {
wtime = (double)( tval.tv_sec ) + 1.0E-06 * (double)( tval.tv_usec );
} else {
// TODO: Assert or abort here.
}; // if
#endif
return wtime;
}; // __kmps_get_wtime
double __kmps_get_wtick( void ) {
// Number of seconds between successive clock ticks.
double wtick = 0.0;
i;
#if KMP_OS_WINDOWS
{
DWORD increment;
DWORD adjustment;
BOOL disabled;
BOOL rc;
rc = GetSystemTimeAdjustment( & adjustment, & increment, & disabled );
if ( rc ) {
wtick = 1.0E-07 * (double)( disabled ? increment : adjustment );
} else {
// TODO: Assert or abort here.
wtick = 1.0E-03;
}; // if
}
#else
// TODO: gettimeofday() returns in microseconds, but what the precision?
wtick = 1.0E-06;
#endif
return wtick;
}; // __kmps_get_wtick
// end of file //
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