diff options
Diffstat (limited to 'src/pj_ctx.c')
| -rw-r--r-- | src/pj_ctx.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/pj_ctx.c b/src/pj_ctx.c new file mode 100644 index 00000000..a9dc7ab8 --- /dev/null +++ b/src/pj_ctx.c @@ -0,0 +1,179 @@ +/****************************************************************************** + * $Id$ + * + * Project: PROJ.4 + * Purpose: Implementation of the projCtx thread context object. + * 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 <projects.h> +#include <string.h> + +PJ_CVSID("$Id$"); + +static projCtx_t default_context; +static int default_context_initialized = 0; + +/************************************************************************/ +/* pj_get_ctx() */ +/************************************************************************/ + +projCtx pj_get_ctx( projPJ pj ) + +{ + return pj->ctx; +} + +/************************************************************************/ +/* pj_set_ctx() */ +/* */ +/* Note we do not deallocate the old context! */ +/************************************************************************/ + +void pj_set_ctx( projPJ pj, projCtx ctx ) + +{ + pj->ctx = ctx; +} + +/************************************************************************/ +/* pj_get_default_ctx() */ +/************************************************************************/ + +projCtx pj_get_default_ctx() + +{ + pj_acquire_lock(); + + if( !default_context_initialized ) + { + default_context_initialized = 1; + default_context.last_errno = 0; + default_context.debug_level = PJ_LOG_NONE; + default_context.logger = pj_stderr_logger; + default_context.app_data = NULL; + + if( getenv("PROJ_DEBUG") != NULL ) + { + if( atoi(getenv("PROJ_DEBUG")) > 0 ) + default_context.debug_level = atoi(getenv("PROJ_DEBUG")); + else + default_context.debug_level = PJ_LOG_DEBUG_MINOR; + } + } + + pj_release_lock(); + + return &default_context; +} + +/************************************************************************/ +/* pj_ctx_alloc() */ +/************************************************************************/ + +projCtx pj_ctx_alloc() + +{ + projCtx ctx = (projCtx_t *) malloc(sizeof(projCtx_t)); + memcpy( ctx, pj_get_default_ctx(), sizeof(projCtx_t) ); + ctx->last_errno = 0; + + return ctx; +} + +/************************************************************************/ +/* pj_ctx_free() */ +/************************************************************************/ + +void pj_ctx_free( projCtx ctx ) + +{ + free( ctx ); +} + +/************************************************************************/ +/* pj_ctx_get_errno() */ +/************************************************************************/ + +int pj_ctx_get_errno( projCtx ctx ) + +{ + return ctx->last_errno; +} + +/************************************************************************/ +/* pj_ctx_set_errno() */ +/* */ +/* Also sets the global errno. */ +/************************************************************************/ + +void pj_ctx_set_errno( projCtx ctx, int new_errno ) + +{ + ctx->last_errno = new_errno; + if( new_errno != 0 ) + pj_errno = new_errno; +} + +/************************************************************************/ +/* pj_ctx_set_debug() */ +/************************************************************************/ + +void pj_ctx_set_debug( projCtx ctx, int new_debug ) + +{ + ctx->debug_level = new_debug; +} + +/************************************************************************/ +/* pj_ctx_set_logger() */ +/************************************************************************/ + +void pj_ctx_set_logger( projCtx ctx, void (*new_logger)(void*,int,const char*) ) + +{ + ctx->logger = new_logger; +} + +/************************************************************************/ +/* pj_ctx_set_app_data() */ +/************************************************************************/ + +void pj_ctx_set_app_data( projCtx ctx, void *new_app_data ) + +{ + ctx->app_data = new_app_data; +} + +/************************************************************************/ +/* pj_ctx_get_app_data() */ +/************************************************************************/ + +void *pj_ctx_get_app_data( projCtx ctx ) + +{ + return ctx->app_data; +} + + |