X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2f810149832a2d855c33d0df5b02d736c2081e41..a9b7c2dbec80a51f8615e24b6cb8f565f1273dd0:/src/mc/memory_map.c diff --git a/src/mc/memory_map.c b/src/mc/memory_map.c index 7496b501db..b0e84a63cf 100644 --- a/src/mc/memory_map.c +++ b/src/mc/memory_map.c @@ -1,17 +1,24 @@ -#define _GNU_SOURCE -#include "private.h" +/* Copyright (c) 2008-2013 Da SimGrid Team. All rights reserved. */ + +/* This program is free software; you can redistribute it and/or modify it + * under the terms of the license (GNU LGPL) which comes with this package. */ + +#include "mc_private.h" #include +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_memory_map, mc, + "Logging specific to algorithms for memory_map"); + memory_map_t get_memory_map(void) { FILE *fp; /* File pointer to process's proc maps file */ char *line = NULL; /* Temporal storage for each line that is readed */ ssize_t read; /* Number of bytes readed */ - size_t n = 0; /* Amount of bytes to read by getline */ + size_t n = 0; /* Amount of bytes to read by xbt_getline */ memory_map_t ret = NULL; /* The memory map to return */ /* The following variables are used during the parsing of the file "maps" */ - s_map_region memreg; /* temporal map region used for creating the map */ + s_map_region_t memreg; /* temporal map region used for creating the map */ char *lfields[6], *tok, *endptr; int i; @@ -19,13 +26,20 @@ memory_map_t get_memory_map(void) /* to be returned. */ fp = fopen("/proc/self/maps", "r"); + if(fp == NULL) + perror("fopen failed"); + xbt_assert(fp, "Cannot open /proc/self/maps to investigate the memory map of the process. Please report this bug."); + setbuf(fp, NULL); + ret = xbt_new0(s_memory_map_t, 1); /* Read one line at the time, parse it and add it to the memory map to be returned */ - while ((read = getline(&line, &n, fp)) != -1) { + while ((read = xbt_getline(&line, &n, fp)) != -1) { + + //fprintf(stderr,"%s", line); /* Wipeout the new line character */ line[read - 1] = '\0'; @@ -131,9 +145,21 @@ memory_map_t get_memory_map(void) xbt_realloc(ret->regions, sizeof(memreg) * (ret->mapsize + 1)); memcpy(ret->regions + ret->mapsize, &memreg, sizeof(memreg)); ret->mapsize++; + } free(line); + fclose(fp); + return ret; } + +void free_memory_map(memory_map_t map){ + + int i; + for(i=0; i< map->mapsize; i++){ + xbt_free(map->regions[i].pathname); + } + xbt_free(map); +}