X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=src%2Frrd_create.c;h=a1b4e5a4efc4bec8ee77dc1ad3b037c41076056a;hp=9ee68961b4ad6e3755fb1bf56f7d9ab85554bc1d;hb=8f9c2c2b3c3f8a65e24dd9d8d612eafe48ccfb2e;hpb=428c0dfd6c70a0e70039d15c2de3a729e01f8fef diff --git a/src/rrd_create.c b/src/rrd_create.c index 9ee6896..a1b4e5a 100644 --- a/src/rrd_create.c +++ b/src/rrd_create.c @@ -1,5 +1,5 @@ /***************************************************************************** - * RRDtool 1.3.2 Copyright by Tobi Oetiker, 1997-2008 + * RRDtool 1.4.2 Copyright by Tobi Oetiker, 1997-2009 ***************************************************************************** * rrd_create.c creates new rrds *****************************************************************************/ @@ -13,6 +13,11 @@ #include "rrd_hw.h" #include "rrd_is_thread_safe.h" +static int opt_no_overwrite = 0; + +#ifdef WIN32 +# include +#endif unsigned long FnvHash( const char *str); @@ -24,8 +29,6 @@ void parseGENERIC_DS( const char *def, rrd_t *rrd, int ds_idx); -long int rra_random_row( - rra_def_t *); static void rrd_free2( rrd_t *rrd); /* our onwn copy, immmune to mmap */ @@ -37,6 +40,7 @@ int rrd_create( struct option long_options[] = { {"start", required_argument, 0, 'b'}, {"step", required_argument, 0, 's'}, + {"no-overwrite", no_argument, 0, 'O'}, {0, 0, 0, 0} }; int option_index = 0; @@ -52,7 +56,7 @@ int rrd_create( opterr = 0; /* initialize getopt */ while (1) { - opt = getopt_long(argc, argv, "b:s:", long_options, &option_index); + opt = getopt_long(argc, argv, "Ob:s:", long_options, &option_index); if (opt == EOF) break; @@ -88,6 +92,10 @@ int rrd_create( pdp_step = long_tmp; break; + case 'O': + opt_no_overwrite = 1; + break; + case '?': if (optopt != 0) rrd_set_error("unknown option '%c'", optopt); @@ -126,14 +134,14 @@ int rrd_create_r( /* init rrd clean */ rrd_init(&rrd); /* static header */ - if ((rrd.stat_head = calloc(1, sizeof(stat_head_t))) == NULL) { + if ((rrd.stat_head = (stat_head_t*)calloc(1, sizeof(stat_head_t))) == NULL) { rrd_set_error("allocating rrd.stat_head"); rrd_free2(&rrd); return (-1); } /* live header */ - if ((rrd.live_head = calloc(1, sizeof(live_head_t))) == NULL) { + if ((rrd.live_head = (live_head_t*)calloc(1, sizeof(live_head_t))) == NULL) { rrd_set_error("allocating rrd.live_head"); rrd_free2(&rrd); return (-1); @@ -164,7 +172,7 @@ int rrd_create_r( if (strncmp(argv[i], "DS:", 3) == 0) { size_t old_size = sizeof(ds_def_t) * (rrd.stat_head->ds_cnt); - if ((rrd.ds_def = rrd_realloc(rrd.ds_def, + if ((rrd.ds_def = (ds_def_t*)rrd_realloc(rrd.ds_def, old_size + sizeof(ds_def_t))) == NULL) { rrd_set_error("allocating rrd.ds_def"); @@ -229,11 +237,11 @@ int rrd_create_r( rrd.stat_head->ds_cnt++; } else if (strncmp(argv[i], "RRA:", 4) == 0) { char *argvcopy; - char *tokptr; + char *tokptr = ""; size_t old_size = sizeof(rra_def_t) * (rrd.stat_head->rra_cnt); int row_cnt; - if ((rrd.rra_def = rrd_realloc(rrd.rra_def, + if ((rrd.rra_def = (rra_def_t*)rrd_realloc(rrd.rra_def, old_size + sizeof(rra_def_t))) == NULL) { rrd_set_error("allocating rrd.rra_def"); @@ -608,7 +616,7 @@ int create_hw_contingent_rras( (rrd->stat_head->rra_cnt)++; /* allocate the memory for the 4 contingent RRAs */ old_size = sizeof(rra_def_t) * (rrd->stat_head->rra_cnt); - if ((rrd->rra_def = rrd_realloc(rrd->rra_def, + if ((rrd->rra_def = (rra_def_t*)rrd_realloc(rrd->rra_def, old_size + 4 * sizeof(rra_def_t))) == NULL) { rrd_free2(rrd); @@ -671,36 +679,39 @@ int rrd_create_fn( rrd_t *rrd) { unsigned long i, ii; - int rrd_file; rrd_value_t *unknown; int unkn_cnt; rrd_file_t *rrd_file_dn; rrd_t rrd_dn; - unsigned flags = O_WRONLY | O_CREAT | O_TRUNC; + unsigned rrd_flags = RRD_READWRITE | RRD_CREAT; -#if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__) - flags |= O_BINARY; -#endif + if (opt_no_overwrite) { + rrd_flags |= RRD_EXCL ; + } - if ((rrd_file = open(file_name, flags, 0666)) < 0) { + unkn_cnt = 0; + for (i = 0; i < rrd->stat_head->rra_cnt; i++) + unkn_cnt += rrd->stat_head->ds_cnt * rrd->rra_def[i].row_cnt; + + if ((rrd_file_dn = rrd_open(file_name, rrd, rrd_flags)) == NULL) { rrd_set_error("creating '%s': %s", file_name, rrd_strerror(errno)); rrd_free2(rrd); return (-1); } - write(rrd_file, rrd->stat_head, sizeof(stat_head_t)); + rrd_write(rrd_file_dn, rrd->stat_head, sizeof(stat_head_t)); - write(rrd_file, rrd->ds_def, sizeof(ds_def_t) * rrd->stat_head->ds_cnt); + rrd_write(rrd_file_dn, rrd->ds_def, sizeof(ds_def_t) * rrd->stat_head->ds_cnt); - write(rrd_file, rrd->rra_def, + rrd_write(rrd_file_dn, rrd->rra_def, sizeof(rra_def_t) * rrd->stat_head->rra_cnt); - write(rrd_file, rrd->live_head, sizeof(live_head_t)); + rrd_write(rrd_file_dn, rrd->live_head, sizeof(live_head_t)); - if ((rrd->pdp_prep = calloc(1, sizeof(pdp_prep_t))) == NULL) { + if ((rrd->pdp_prep = (pdp_prep_t*)calloc(1, sizeof(pdp_prep_t))) == NULL) { rrd_set_error("allocating pdp_prep"); rrd_free2(rrd); - close(rrd_file); + rrd_close(rrd_file_dn); return (-1); } @@ -711,12 +722,12 @@ int rrd_create_fn( rrd->live_head->last_up % rrd->stat_head->pdp_step; for (i = 0; i < rrd->stat_head->ds_cnt; i++) - write(rrd_file, rrd->pdp_prep, sizeof(pdp_prep_t)); + rrd_write(rrd_file_dn, rrd->pdp_prep, sizeof(pdp_prep_t)); - if ((rrd->cdp_prep = calloc(1, sizeof(cdp_prep_t))) == NULL) { + if ((rrd->cdp_prep = (cdp_prep_t*)calloc(1, sizeof(cdp_prep_t))) == NULL) { rrd_set_error("allocating cdp_prep"); rrd_free2(rrd); - close(rrd_file); + rrd_close(rrd_file_dn); return (-1); } @@ -753,17 +764,17 @@ int rrd_create_fn( } for (ii = 0; ii < rrd->stat_head->ds_cnt; ii++) { - write(rrd_file, rrd->cdp_prep, sizeof(cdp_prep_t)); + rrd_write(rrd_file_dn, rrd->cdp_prep, sizeof(cdp_prep_t)); } } /* now, we must make sure that the rest of the rrd struct is properly initialized */ - if ((rrd->rra_ptr = calloc(1, sizeof(rra_ptr_t))) == NULL) { + if ((rrd->rra_ptr = (rra_ptr_t*)calloc(1, sizeof(rra_ptr_t))) == NULL) { rrd_set_error("allocating rra_ptr"); rrd_free2(rrd); - close(rrd_file); + rrd_close(rrd_file_dn); return (-1); } @@ -772,41 +783,43 @@ int rrd_create_fn( * would occur for cur_row = 1 because rrd_update increments * the pointer a priori. */ for (i = 0; i < rrd->stat_head->rra_cnt; i++) { - rrd->rra_ptr->cur_row = rra_random_row(&rrd->rra_def[i]); - write(rrd_file, rrd->rra_ptr, sizeof(rra_ptr_t)); + rrd->rra_ptr->cur_row = rrd_select_initial_row(rrd_file_dn, i, &rrd->rra_def[i]); + rrd_write(rrd_file_dn, rrd->rra_ptr, sizeof(rra_ptr_t)); } /* write the empty data area */ if ((unknown = (rrd_value_t *) malloc(512 * sizeof(rrd_value_t))) == NULL) { rrd_set_error("allocating unknown"); rrd_free2(rrd); - close(rrd_file); + rrd_close(rrd_file_dn); return (-1); } for (i = 0; i < 512; ++i) unknown[i] = DNAN; - unkn_cnt = 0; - for (i = 0; i < rrd->stat_head->rra_cnt; i++) - unkn_cnt += rrd->stat_head->ds_cnt * rrd->rra_def[i].row_cnt; - while (unkn_cnt > 0) { - write(rrd_file, unknown, sizeof(rrd_value_t) * min(unkn_cnt, 512)); + if(rrd_write(rrd_file_dn, unknown, sizeof(rrd_value_t) * min(unkn_cnt, 512)) < 0) + { + rrd_set_error("creating rrd: %s", rrd_strerror(errno)); + return -1; + } unkn_cnt -= 512; } free(unknown); - fdatasync(rrd_file); rrd_free2(rrd); - if (close(rrd_file) == -1) { + if (rrd_close(rrd_file_dn) == -1) { rrd_set_error("creating rrd: %s", rrd_strerror(errno)); return -1; } /* flush all we don't need out of the cache */ - rrd_file_dn = rrd_open(file_name, &rrd_dn, RRD_READONLY); - rrd_dontneed(rrd_file_dn, &rrd_dn); - rrd_free(&rrd_dn); - rrd_close(rrd_file_dn); + rrd_init(&rrd_dn); + if((rrd_file_dn = rrd_open(file_name, &rrd_dn, RRD_READONLY)) != NULL) + { + rrd_dontneed(rrd_file_dn, &rrd_dn); + /* rrd_free(&rrd_dn); */ + rrd_close(rrd_file_dn); + } return (0); } @@ -824,15 +837,3 @@ static void rrd_free2( free(rrd->rrd_value); } -static int rand_init = 0; - -long int rra_random_row( - rra_def_t *rra) -{ - if (!rand_init) { - srandom((unsigned int) time(NULL) + (unsigned int) getpid()); - rand_init++; - } - - return random() % rra->row_cnt; -}