Andrey Churbanov
9236d9713a
git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@227207 91177308-0d34-0410-b5e6-96231b3b80d8
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/*
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* kmp_environment.h -- Handle environment varoiables OS-independently.
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*/
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.txt for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef KMP_ENVIRONMENT_H
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#define KMP_ENVIRONMENT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Return a copy of the value of environment variable or NULL if the variable does not exist.
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// *Note*: Returned pointed *must* be freed after use with __kmp_env_free().
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char * __kmp_env_get( char const * name );
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void __kmp_env_free( char const * * value );
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// Return 1 if the environment variable exists or 0 if does not exist.
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int __kmp_env_exists( char const * name );
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// Set the environment variable.
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void __kmp_env_set( char const * name, char const * value, int overwrite );
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// Unset (remove) environment variable.
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void __kmp_env_unset( char const * name );
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// -------------------------------------------------------------------------------------------------
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// Working with environment blocks.
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// -------------------------------------------------------------------------------------------------
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/*
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kmp_env_blk_t is read-only collection of environment variables (or environment-like). Usage:
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kmp_env_blk_t block;
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__kmp_env_blk_init( & block, NULL ); // Initialize block from process environment.
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// or
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__kmp_env_blk_init( & block, "KMP_WARNING=1|KMP_AFFINITY=none" ); // from string.
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__kmp_env_blk_sort( & block ); // Optionally, sort list.
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for ( i = 0; i < block.count; ++ i ) {
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// Process block.vars[ i ].name and block.vars[ i ].value...
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}; // for i
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__kmp_env_block_free( & block );
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*/
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struct __kmp_env_var {
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char const * name;
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char const * value;
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};
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typedef struct __kmp_env_var kmp_env_var_t;
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struct __kmp_env_blk {
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char const * bulk;
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kmp_env_var_t const * vars;
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int count;
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};
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typedef struct __kmp_env_blk kmp_env_blk_t;
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void __kmp_env_blk_init( kmp_env_blk_t * block, char const * bulk );
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void __kmp_env_blk_free( kmp_env_blk_t * block );
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void __kmp_env_blk_sort( kmp_env_blk_t * block );
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char const * __kmp_env_blk_var( kmp_env_blk_t * block, char const * name );
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#ifdef __cplusplus
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}
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#endif
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#endif // KMP_ENVIRONMENT_H
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// end of file //
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