| /* Copyright 2012, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * alloc.c: Memory allocation wrappers. See comments in alloc.h for details. |
| */ |
| |
| #include "mosys/alloc.h" |
| #include "mosys/log.h" |
| |
| /* the app-specified allocation failure handler - NULL by default */ |
| static alloc_failure_handler do_alloc_failure; |
| |
| /* set the allocation failure handler - for use by library users */ |
| void |
| mosys_set_alloc_failure_handler(alloc_failure_handler func_ptr) |
| { |
| do_alloc_failure = func_ptr; |
| } |
| |
| /* the last resort if an allocation fails - this function does not return */ |
| static void * |
| alloc_fail_abort(size_t size, const char *file, int line, const char *func) |
| { |
| lprintf(LOG_EMERG, "allocation failure in %s (%s:%d): %u bytes\n", |
| func, file, line, (unsigned)size); |
| abort(); |
| return NULL; |
| } |
| |
| void * |
| internal_mosys_malloc(size_t size, |
| const char *file, int line, const char *func) |
| { |
| do { |
| void *p = malloc(size); |
| if (p != NULL) |
| return p; |
| } while (do_alloc_failure |
| && (do_alloc_failure(size, file, line, func) == 0)); |
| |
| return alloc_fail_abort(size, file, line, func); |
| } |
| |
| void * |
| internal_mosys_calloc(size_t nmemb, size_t size, |
| const char *file, int line, const char *func) |
| { |
| do { |
| void *p = calloc(nmemb, size); |
| if (p != NULL) |
| return p; |
| } while (do_alloc_failure |
| && (do_alloc_failure(nmemb*size, file, line, func) == 0)); |
| |
| return alloc_fail_abort(nmemb*size, file, line, func); |
| } |
| |
| void * |
| internal_mosys_zalloc(size_t size, |
| const char *file, int line, const char *func) |
| { |
| return internal_mosys_calloc(1, size, file, line, func); |
| } |
| |
| void * |
| internal_mosys_realloc(void *ptr, size_t size, |
| const char *file, int line, const char *func) |
| { |
| do { |
| void *p = realloc(ptr, size); |
| if (p != NULL) |
| return p; |
| } while (do_alloc_failure |
| && (do_alloc_failure(size, file, line, func) == 0)); |
| |
| return alloc_fail_abort(size, file, line, func); |
| } |
| |
| char * |
| internal_mosys_strdup(const char *str, |
| const char *file, int line, const char *func) |
| { |
| do { |
| char *p = strdup(str); |
| if (p != NULL) |
| return p; |
| } while (do_alloc_failure |
| // COV_NF_START |
| && (do_alloc_failure(strlen(str)+1, file, line, func) == 0)); |
| |
| return alloc_fail_abort(strlen(str)+1, file, line, func); // COV_NF_END |
| } |