/alps/pcitool : revision 271

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Viewing changes to pcilib/env.c

Prevent excessive calling of getenv by debugging code for better performance

added added

removed removed

#include <stdio.h>

#include <stdlib.h>

#include "env.h"

static const char *pcilib_env_cache[PCILIB_MAX_ENV] = {0};

const char *pcilib_getenv(pcilib_env_t env, const char *var) {

if (!pcilib_env_cache[env]) {

const char *var_env = getenv(var);

pcilib_env_cache[env] = var_env?var_env:(void*)-1;

return var_env;

}

return (pcilib_env_cache[env] == (void*)-1)?NULL:pcilib_env_cache[env];

}