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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,214 @@ | ||
| #include <pthread.h> | ||
| #include <rrd.h> | ||
| #include <dfsch/dfsch.h> | ||
| #include <dfsch/load.h> | ||
| #include <dfsch/hash.h> | ||
| #include <dfsch/number.h> | ||
| #include <dfsch/strings.h> | ||
| #include <dfsch/util.h> | ||
| #include <dfsch/conditions.h> | ||
|
|
||
| static char* convert_arg(dfsch_object_t* obj){ | ||
| if (dfsch_keyword_p(obj)){ | ||
| char* str = dfsch_symbol(obj); | ||
| if (strlen(str) == 1){ | ||
| return dfsch_saprintf("-%s", str); | ||
| } else { | ||
| return dfsch_saprintf("--%s", str); | ||
| } | ||
| } else if (dfsch_string_p(obj)) { | ||
| return dfsch_string_to_cstr(obj); | ||
| } else { | ||
| return dfsch_object_2_string(obj, 10, 1); | ||
| } | ||
| } | ||
|
|
||
| static void build_args(dfsch_object_t* list, int* pargc, char*** pargv){ | ||
| int alloc = 16; | ||
| char** argv = GC_MALLOC(sizeof(char*) * alloc); | ||
| int argc = 0; | ||
|
|
||
| while (DFSCH_PAIR_P(list)){ | ||
| if (alloc <= argc){ | ||
| alloc *= 2; | ||
| argv = GC_REALLOC(argv, sizeof(char*) * alloc); | ||
| } | ||
|
|
||
| argv[argc] = convert_arg(DFSCH_FAST_CAR(list)); | ||
|
|
||
| argc++; | ||
| list = DFSCH_FAST_CDR(list); | ||
| } | ||
| *pargc = argc; | ||
| *pargv = argv; | ||
| } | ||
|
|
||
| static dfsch_object_t* convert_info(rrd_info_t * data){ | ||
| dfsch_object_t* res = dfsch_make_idhash(); | ||
| while (data) { | ||
| dfsch_object_t* val = NULL; | ||
|
|
||
| switch (data->type) { | ||
| case RD_I_VAL: | ||
| val = isnan(data->value.u_val) | ||
| ? NULL | ||
| : dfsch_make_number_from_double(data->value.u_val); | ||
| break; | ||
| case RD_I_CNT: | ||
| val = dfsch_make_number_from_uint64(data->value.u_cnt); | ||
| break; | ||
| case RD_I_INT: | ||
| val = dfsch_make_number_from_long(data->value.u_int); | ||
| break; | ||
| case RD_I_STR: | ||
| val = dfsch_make_string_cstr(data->value.u_str); | ||
| break; | ||
| case RD_I_BLO: | ||
| val = dfsch_make_byte_vector((char *) data->value.u_blo.ptr, | ||
| data->value.u_blo.size); | ||
| break; | ||
| } | ||
|
|
||
| dfsch_idhash_set((dfsch_hash_t*)res, dfsch_make_keyword(data->key), val); | ||
|
|
||
| data = data->next; | ||
| } | ||
| return res; | ||
| } | ||
|
|
||
| static pthread_mutex_t rrd_lock = PTHREAD_MUTEX_INITIALIZER; | ||
| #define RRD_ERROR_TYPE (&rrd_error_type) | ||
| static dfsch_type_t rrd_error_type = | ||
| DFSCH_CONDITION_TYPE_INIT(DFSCH_RUNTIME_ERROR_TYPE, "rrd-error"); | ||
|
|
||
| static void rrd_error(char* fun){ | ||
| dfsch_object_t* c = dfsch_make_condition(RRD_ERROR_TYPE); | ||
| dfsch_condition_put_field_cstr(c, "message", | ||
| dfsch_make_string_cstr(rrd_get_error())); | ||
| dfsch_condition_put_field_cstr(c, "function", | ||
| dfsch_make_string_cstr(fun)); | ||
| pthread_mutex_unlock(&rrd_lock); | ||
| dfsch_signal(c); | ||
| } | ||
|
|
||
| DFSCH_DEFINE_PRIMITIVE(create, | ||
| "Create new RRD file"){ | ||
| int argc; | ||
| char**argv; | ||
| build_args(args, &argc, &argv); | ||
|
|
||
| pthread_mutex_lock(&rrd_lock); | ||
| if (rrd_create(argc, argv) == -1){ | ||
| rrd_error("create"); | ||
| } | ||
| pthread_mutex_unlock(&rrd_lock); | ||
|
|
||
| return NULL; | ||
| } | ||
|
|
||
| DFSCH_DEFINE_PRIMITIVE(update, | ||
| "Write new values into RRD file"){ | ||
| int argc; | ||
| char**argv; | ||
| build_args(args, &argc, &argv); | ||
|
|
||
| pthread_mutex_lock(&rrd_lock); | ||
| if (rrd_update(argc, argv) == -1){ | ||
| rrd_error("update"); | ||
| } | ||
| pthread_mutex_unlock(&rrd_lock); | ||
|
|
||
| return NULL; | ||
| } | ||
|
|
||
| DFSCH_DEFINE_PRIMITIVE(tune, | ||
| "Modify parameters of RRD file"){ | ||
| int argc; | ||
| char**argv; | ||
| build_args(args, &argc, &argv); | ||
|
|
||
| pthread_mutex_lock(&rrd_lock); | ||
| if (rrd_tune(argc, argv) == -1){ | ||
| rrd_error("tune"); | ||
| } | ||
| pthread_mutex_unlock(&rrd_lock); | ||
|
|
||
| return NULL; | ||
| } | ||
|
|
||
| DFSCH_DEFINE_PRIMITIVE(resize, | ||
| "Resize an RRD file"){ | ||
| int argc; | ||
| char**argv; | ||
| build_args(args, &argc, &argv); | ||
|
|
||
| pthread_mutex_lock(&rrd_lock); | ||
| if (rrd_resize(argc, argv) == -1){ | ||
| rrd_error("resize"); | ||
| } | ||
| pthread_mutex_unlock(&rrd_lock); | ||
|
|
||
| return NULL; | ||
| } | ||
|
|
||
| DFSCH_DEFINE_PRIMITIVE(graph, | ||
| "Draw graph from data in RRD file(s)"){ | ||
| int argc; | ||
| char**argv; | ||
| rrd_info_t* info; | ||
| dfsch_object_t* res; | ||
| build_args(args, &argc, &argv); | ||
|
|
||
| pthread_mutex_lock(&rrd_lock); | ||
| if ((info = rrd_graph_v(argc, argv)) == NULL){ | ||
| rrd_error("graph"); | ||
| } | ||
| res = convert_info(info); | ||
| rrd_info_free(info); | ||
| pthread_mutex_unlock(&rrd_lock); | ||
|
|
||
| return res; | ||
| } | ||
|
|
||
| DFSCH_DEFINE_PRIMITIVE(info, | ||
| "Draw graph from data in RRD file(s)"){ | ||
| int argc; | ||
| char**argv; | ||
| rrd_info_t* info; | ||
| dfsch_object_t* res; | ||
| build_args(args, &argc, &argv); | ||
|
|
||
| pthread_mutex_lock(&rrd_lock); | ||
| if ((info = rrd_info(argc, argv)) == NULL){ | ||
| rrd_error("info"); | ||
| } | ||
| res = convert_info(info); | ||
| rrd_info_free(info); | ||
| pthread_mutex_unlock(&rrd_lock); | ||
|
|
||
| return res; | ||
| } | ||
|
|
||
| void dfsch_module_rrd_register(dfsch_object_t* env){ | ||
| dfsch_object_t* rrd = dfsch_make_package("rrd", | ||
| "Native library based interface to RRDtool, " | ||
| "see original RRDtool documentation for details"); | ||
| dfsch_provide(env, "rrd"); | ||
|
|
||
| dfsch_defcanon_pkgcstr(env, rrd, "<error>", RRD_ERROR_TYPE); | ||
|
|
||
| dfsch_defcanon_pkgcstr(env, rrd, "create", | ||
| DFSCH_PRIMITIVE_REF(create)); | ||
| dfsch_defcanon_pkgcstr(env, rrd, "update", | ||
| DFSCH_PRIMITIVE_REF(update)); | ||
| dfsch_defcanon_pkgcstr(env, rrd, "tune", | ||
| DFSCH_PRIMITIVE_REF(tune)); | ||
| dfsch_defcanon_pkgcstr(env, rrd, "resize", | ||
| DFSCH_PRIMITIVE_REF(resize)); | ||
| dfsch_defcanon_pkgcstr(env, rrd, "graph", | ||
| DFSCH_PRIMITIVE_REF(graph)); | ||
| dfsch_defcanon_pkgcstr(env, rrd, "info", | ||
| DFSCH_PRIMITIVE_REF(info)); | ||
|
|
||
|
|
||
| } |