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/******************************************************************************
*
* Project: PROJ.4
* Purpose: Mainline program to stress test multithreaded PROJ.4 processing.
* Author: Frank Warmerdam, warmerdam@pobox.com
*
******************************************************************************
* Copyright (c) 2010, Frank Warmerdam
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <unistd.h>
#include "proj_api.h"
typedef struct {
const char *src_def;
const char *dst_def;
double src_x, src_y, src_z;
double dst_x, dst_y, dst_z;
int dst_error;
} TestItem;
TestItem test_list[] = {
{
"+proj=utm +zone=11 +datum=WGS84",
"+proj=latlong +datum=WGS84",
150000.0, 3000000.0, 0.0,
},
{
"+proj=utm +zone=11 +datum=NAD83",
"+proj=latlong +datum=NAD27",
150000.0, 3000000.0, 0.0,
},
{
"+proj=utm +zone=11 +datum=WGS84",
"+proj=merc +datum=potsdam",
150000.0, 3000000.0, 0.0,
},
/*
** This test currentsly sets pj_errno and messes up the others. It
** should be re-enabled when the pj_errno conflict is resolved.
*/
#ifdef notdef
{
"+proj=latlong +nadgrids=nzgd2kgrid0005.gsb",
"+proj=latlong +datum=WGS84",
150000.0, 3000000.0, 0.0,
},
#endif
{
"+proj=latlong +nadgrids=nzgd2kgrid0005.gsb",
"+proj=latlong +datum=WGS84",
170 * DEG_TO_RAD, -40 * DEG_TO_RAD, 0.0,
},
{
"+init=epsg:3309",
"+init=epsg:4326",
150000.0, 30000.0, 0.0,
}
};
static volatile int active_thread_count = 0;
/************************************************************************/
/* TestThread() */
/************************************************************************/
static void *TestThread( void *pData )
{
int i, test_count = sizeof(test_list) / sizeof(TestItem);
/* -------------------------------------------------------------------- */
/* Initialize coordinate system definitions. */
/* -------------------------------------------------------------------- */
projPJ *src_pj_list, *dst_pj_list;
src_pj_list = (projPJ *) calloc(test_count,sizeof(projPJ));
dst_pj_list = (projPJ *) calloc(test_count,sizeof(projPJ));
for( i = 0; i < test_count; i++ )
{
TestItem *test = test_list + i;
src_pj_list[i] = pj_init_plus( test->src_def );
dst_pj_list[i] = pj_init_plus( test->dst_def );
}
/* -------------------------------------------------------------------- */
/* Perform tests - over and over. */
/* -------------------------------------------------------------------- */
int repeat_count = 100000, i_iter;
for( i_iter = 0; i_iter < repeat_count; i_iter++ )
{
for( i = 0; i < test_count; i++ )
{
TestItem *test = test_list + i;
double x, y, z;
int error;
x = test->src_x;
y = test->src_y;
z = test->src_z;
error = pj_transform( src_pj_list[i], dst_pj_list[i], 1, 0,
&x, &y, &z );
if( error != test->dst_error )
{
fprintf( stderr, "Got error %d, expected %d\n",
error, test->dst_error );
}
if( x != test->dst_x || y != test->dst_y || z != test->dst_z )
{
fprintf( stderr,
"Got %.15g,%.15g,%.15g\n"
"Expected %.15g,%.15g,%.15g\n",
x, y, z,
test->dst_x, test->dst_y, test->dst_z );
}
}
}
printf( "%d iterations of the %d tests complete in thread X\n",
repeat_count, test_count );
active_thread_count--;
}
/************************************************************************/
/* main() */
/************************************************************************/
int main( int argc, char **argv )
{
/* -------------------------------------------------------------------- */
/* Our first pass is to establish the correct answers for all */
/* the tests. */
/* -------------------------------------------------------------------- */
int i, test_count = sizeof(test_list) / sizeof(TestItem);
for( i = 0; i < test_count; i++ )
{
TestItem *test = test_list + i;
projPJ src_pj, dst_pj;
src_pj = pj_init_plus( test->src_def );
dst_pj = pj_init_plus( test->dst_def );
test->dst_x = test->src_x;
test->dst_y = test->src_y;
test->dst_z = test->src_z;
test->dst_error = pj_transform( src_pj, dst_pj, 1, 0,
&(test->dst_x),
&(test->dst_y),
&(test->dst_z) );
pj_free( src_pj );
pj_free( dst_pj );
}
printf( "%d tests initialized.\n", test_count );
/* -------------------------------------------------------------------- */
/* Now launch a bunch of threads to repeat the tests. */
/* -------------------------------------------------------------------- */
#define num_threads 2
pthread_t ahThread[num_threads];
pthread_attr_t hThreadAttr;
pthread_attr_init( &hThreadAttr );
pthread_attr_setdetachstate( &hThreadAttr, PTHREAD_CREATE_DETACHED );
for( i = 0; i < num_threads; i++ )
{
active_thread_count++;
pthread_create( &(ahThread[i]), &hThreadAttr,
TestThread, NULL );
}
printf( "%d test threads launched.\n", num_threads );
while( active_thread_count > 0 )
sleep( 1 );
printf( "all tests complete.\n" );
}
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