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authorDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:22:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:22:44 +0000
commit1e6c93250172946eeb38e94a92a1fd12c9d3011e (patch)
tree8ca5e16dfc7ad6b3bf2738ca0a48408a950f8f7e /src/registry_db.c
parentUpdate watch file (diff)
downloadnetdata-1e6c93250172946eeb38e94a92a1fd12c9d3011e.tar.xz
netdata-1e6c93250172946eeb38e94a92a1fd12c9d3011e.zip
Merging upstream version 1.11.0+dfsg.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/registry_db.c')
-rw-r--r--src/registry_db.c343
1 files changed, 0 insertions, 343 deletions
diff --git a/src/registry_db.c b/src/registry_db.c
deleted file mode 100644
index de6c634c..00000000
--- a/src/registry_db.c
+++ /dev/null
@@ -1,343 +0,0 @@
-#include "registry_internals.h"
-
-int registry_db_should_be_saved(void) {
- debug(D_REGISTRY, "log entries %llu, max %llu", registry.log_count, registry.save_registry_every_entries);
- return registry.log_count > registry.save_registry_every_entries;
-}
-
-// ----------------------------------------------------------------------------
-// INTERNAL FUNCTIONS FOR SAVING REGISTRY OBJECTS
-
-static int registry_machine_save_url(void *entry, void *file) {
- REGISTRY_MACHINE_URL *mu = entry;
- FILE *fp = file;
-
- debug(D_REGISTRY, "Registry: registry_machine_save_url('%s')", mu->url->url);
-
- int ret = fprintf(fp, "V\t%08x\t%08x\t%08x\t%02x\t%s\n",
- mu->first_t,
- mu->last_t,
- mu->usages,
- mu->flags,
- mu->url->url
- );
-
- // error handling is done at registry_db_save()
-
- return ret;
-}
-
-static int registry_machine_save(void *entry, void *file) {
- REGISTRY_MACHINE *m = entry;
- FILE *fp = file;
-
- debug(D_REGISTRY, "Registry: registry_machine_save('%s')", m->guid);
-
- int ret = fprintf(fp, "M\t%08x\t%08x\t%08x\t%s\n",
- m->first_t,
- m->last_t,
- m->usages,
- m->guid
- );
-
- if(ret >= 0) {
- int ret2 = dictionary_get_all(m->machine_urls, registry_machine_save_url, fp);
- if(ret2 < 0) return ret2;
- ret += ret2;
- }
-
- // error handling is done at registry_db_save()
-
- return ret;
-}
-
-static inline int registry_person_save_url(void *entry, void *file) {
- REGISTRY_PERSON_URL *pu = entry;
- FILE *fp = file;
-
- debug(D_REGISTRY, "Registry: registry_person_save_url('%s')", pu->url->url);
-
- int ret = fprintf(fp, "U\t%08x\t%08x\t%08x\t%02x\t%s\t%s\t%s\n",
- pu->first_t,
- pu->last_t,
- pu->usages,
- pu->flags,
- pu->machine->guid,
- pu->machine_name,
- pu->url->url
- );
-
- // error handling is done at registry_db_save()
-
- return ret;
-}
-
-static inline int registry_person_save(void *entry, void *file) {
- REGISTRY_PERSON *p = entry;
- FILE *fp = file;
-
- debug(D_REGISTRY, "Registry: registry_person_save('%s')", p->guid);
-
- int ret = fprintf(fp, "P\t%08x\t%08x\t%08x\t%s\n",
- p->first_t,
- p->last_t,
- p->usages,
- p->guid
- );
-
- if(ret >= 0) {
- //int ret2 = dictionary_get_all(p->person_urls, registry_person_save_url, fp);
- int ret2 = avl_traverse(&p->person_urls, registry_person_save_url, fp);
- if (ret2 < 0) return ret2;
- ret += ret2;
- }
-
- // error handling is done at registry_db_save()
-
- return ret;
-}
-
-// ----------------------------------------------------------------------------
-// SAVE THE REGISTRY DATABASE
-
-int registry_db_save(void) {
- if(unlikely(!registry.enabled))
- return -1;
-
- if(unlikely(!registry_db_should_be_saved()))
- return -2;
-
- error_log_limit_unlimited();
-
- char tmp_filename[FILENAME_MAX + 1];
- char old_filename[FILENAME_MAX + 1];
-
- snprintfz(old_filename, FILENAME_MAX, "%s.old", registry.db_filename);
- snprintfz(tmp_filename, FILENAME_MAX, "%s.tmp", registry.db_filename);
-
- debug(D_REGISTRY, "Registry: Creating file '%s'", tmp_filename);
- FILE *fp = fopen(tmp_filename, "w");
- if(!fp) {
- error("Registry: Cannot create file: %s", tmp_filename);
- error_log_limit_reset();
- return -1;
- }
-
- // dictionary_get_all() has its own locking, so this is safe to do
-
- debug(D_REGISTRY, "Saving all machines");
- int bytes1 = dictionary_get_all(registry.machines, registry_machine_save, fp);
- if(bytes1 < 0) {
- error("Registry: Cannot save registry machines - return value %d", bytes1);
- fclose(fp);
- error_log_limit_reset();
- return bytes1;
- }
- debug(D_REGISTRY, "Registry: saving machines took %d bytes", bytes1);
-
- debug(D_REGISTRY, "Saving all persons");
- int bytes2 = dictionary_get_all(registry.persons, registry_person_save, fp);
- if(bytes2 < 0) {
- error("Registry: Cannot save registry persons - return value %d", bytes2);
- fclose(fp);
- error_log_limit_reset();
- return bytes2;
- }
- debug(D_REGISTRY, "Registry: saving persons took %d bytes", bytes2);
-
- // save the totals
- fprintf(fp, "T\t%016llx\t%016llx\t%016llx\t%016llx\t%016llx\t%016llx\n",
- registry.persons_count,
- registry.machines_count,
- registry.usages_count + 1, // this is required - it is lost on db rotation
- registry.urls_count,
- registry.persons_urls_count,
- registry.machines_urls_count
- );
-
- fclose(fp);
-
- errno = 0;
-
- // remove the .old db
- debug(D_REGISTRY, "Registry: Removing old db '%s'", old_filename);
- if(unlink(old_filename) == -1 && errno != ENOENT)
- error("Registry: cannot remove old registry file '%s'", old_filename);
-
- // rename the db to .old
- debug(D_REGISTRY, "Registry: Link current db '%s' to .old: '%s'", registry.db_filename, old_filename);
- if(link(registry.db_filename, old_filename) == -1 && errno != ENOENT)
- error("Registry: cannot move file '%s' to '%s'. Saving registry DB failed!", registry.db_filename, old_filename);
-
- else {
- // remove the database (it is saved in .old)
- debug(D_REGISTRY, "Registry: removing db '%s'", registry.db_filename);
- if (unlink(registry.db_filename) == -1 && errno != ENOENT)
- error("Registry: cannot remove old registry file '%s'", registry.db_filename);
-
- // move the .tmp to make it active
- debug(D_REGISTRY, "Registry: linking tmp db '%s' to active db '%s'", tmp_filename, registry.db_filename);
- if (link(tmp_filename, registry.db_filename) == -1) {
- error("Registry: cannot move file '%s' to '%s'. Saving registry DB failed!", tmp_filename,
- registry.db_filename);
-
- // move the .old back
- debug(D_REGISTRY, "Registry: linking old db '%s' to active db '%s'", old_filename, registry.db_filename);
- if(link(old_filename, registry.db_filename) == -1)
- error("Registry: cannot move file '%s' to '%s'. Recovering the old registry DB failed!", old_filename, registry.db_filename);
- }
- else {
- debug(D_REGISTRY, "Registry: removing tmp db '%s'", tmp_filename);
- if(unlink(tmp_filename) == -1)
- error("Registry: cannot remove tmp registry file '%s'", tmp_filename);
-
- // it has been moved successfully
- // discard the current registry log
- registry_log_recreate();
- registry.log_count = 0;
- }
- }
-
- // continue operations
- error_log_limit_reset();
-
- return -1;
-}
-
-// ----------------------------------------------------------------------------
-// LOAD THE REGISTRY DATABASE
-
-size_t registry_db_load(void) {
- char *s, buf[4096 + 1];
- REGISTRY_PERSON *p = NULL;
- REGISTRY_MACHINE *m = NULL;
- REGISTRY_URL *u = NULL;
- size_t line = 0;
-
- debug(D_REGISTRY, "Registry: loading active db from: '%s'", registry.db_filename);
- FILE *fp = fopen(registry.db_filename, "r");
- if(!fp) {
- error("Registry: cannot open registry file: '%s'", registry.db_filename);
- return 0;
- }
-
- size_t len = 0;
- buf[4096] = '\0';
- while((s = fgets_trim_len(buf, 4096, fp, &len))) {
- line++;
-
- debug(D_REGISTRY, "Registry: read line %zu to length %zu: %s", line, len, s);
- switch(*s) {
- case 'T': // totals
- if(unlikely(len != 103 || s[1] != '\t' || s[18] != '\t' || s[35] != '\t' || s[52] != '\t' || s[69] != '\t' || s[86] != '\t' || s[103] != '\0')) {
- error("Registry totals line %zu is wrong (len = %zu).", line, len);
- continue;
- }
- registry.persons_count = strtoull(&s[2], NULL, 16);
- registry.machines_count = strtoull(&s[19], NULL, 16);
- registry.usages_count = strtoull(&s[36], NULL, 16);
- registry.urls_count = strtoull(&s[53], NULL, 16);
- registry.persons_urls_count = strtoull(&s[70], NULL, 16);
- registry.machines_urls_count = strtoull(&s[87], NULL, 16);
- break;
-
- case 'P': // person
- m = NULL;
- // verify it is valid
- if(unlikely(len != 65 || s[1] != '\t' || s[10] != '\t' || s[19] != '\t' || s[28] != '\t' || s[65] != '\0')) {
- error("Registry person line %zu is wrong (len = %zu).", line, len);
- continue;
- }
-
- s[1] = s[10] = s[19] = s[28] = '\0';
- p = registry_person_allocate(&s[29], strtoul(&s[2], NULL, 16));
- p->last_t = (uint32_t)strtoul(&s[11], NULL, 16);
- p->usages = (uint32_t)strtoul(&s[20], NULL, 16);
- debug(D_REGISTRY, "Registry loaded person '%s', first: %u, last: %u, usages: %u", p->guid, p->first_t, p->last_t, p->usages);
- break;
-
- case 'M': // machine
- p = NULL;
- // verify it is valid
- if(unlikely(len != 65 || s[1] != '\t' || s[10] != '\t' || s[19] != '\t' || s[28] != '\t' || s[65] != '\0')) {
- error("Registry person line %zu is wrong (len = %zu).", line, len);
- continue;
- }
-
- s[1] = s[10] = s[19] = s[28] = '\0';
- m = registry_machine_allocate(&s[29], strtoul(&s[2], NULL, 16));
- m->last_t = (uint32_t)strtoul(&s[11], NULL, 16);
- m->usages = (uint32_t)strtoul(&s[20], NULL, 16);
- debug(D_REGISTRY, "Registry loaded machine '%s', first: %u, last: %u, usages: %u", m->guid, m->first_t, m->last_t, m->usages);
- break;
-
- case 'U': // person URL
- if(unlikely(!p)) {
- error("Registry: ignoring line %zu, no person loaded: %s", line, s);
- continue;
- }
-
- // verify it is valid
- if(len < 69 || s[1] != '\t' || s[10] != '\t' || s[19] != '\t' || s[28] != '\t' || s[31] != '\t' || s[68] != '\t') {
- error("Registry person URL line %zu is wrong (len = %zu).", line, len);
- continue;
- }
-
- s[1] = s[10] = s[19] = s[28] = s[31] = s[68] = '\0';
-
- // skip the name to find the url
- char *url = &s[69];
- while(*url && *url != '\t') url++;
- if(!*url) {
- error("Registry person URL line %zu does not have a url.", line);
- continue;
- }
- *url++ = '\0';
-
- // u = registry_url_allocate_nolock(url, strlen(url));
- u = registry_url_get(url, strlen(url));
-
- time_t first_t = strtoul(&s[2], NULL, 16);
-
- m = registry_machine_find(&s[32]);
- if(!m) m = registry_machine_allocate(&s[32], first_t);
-
- REGISTRY_PERSON_URL *pu = registry_person_url_allocate(p, m, u, &s[69], strlen(&s[69]), first_t);
- pu->last_t = (uint32_t)strtoul(&s[11], NULL, 16);
- pu->usages = (uint32_t)strtoul(&s[20], NULL, 16);
- pu->flags = (uint8_t)strtoul(&s[29], NULL, 16);
- debug(D_REGISTRY, "Registry loaded person URL '%s' with name '%s' of machine '%s', first: %u, last: %u, usages: %u, flags: %02x", u->url, pu->machine_name, m->guid, pu->first_t, pu->last_t, pu->usages, pu->flags);
- break;
-
- case 'V': // machine URL
- if(unlikely(!m)) {
- error("Registry: ignoring line %zu, no machine loaded: %s", line, s);
- continue;
- }
-
- // verify it is valid
- if(len < 32 || s[1] != '\t' || s[10] != '\t' || s[19] != '\t' || s[28] != '\t' || s[31] != '\t') {
- error("Registry person URL line %zu is wrong (len = %zu).", line, len);
- continue;
- }
-
- s[1] = s[10] = s[19] = s[28] = s[31] = '\0';
- // u = registry_url_allocate_nolock(&s[32], strlen(&s[32]));
- u = registry_url_get(&s[32], strlen(&s[32]));
-
- REGISTRY_MACHINE_URL *mu = registry_machine_url_allocate(m, u, strtoul(&s[2], NULL, 16));
- mu->last_t = (uint32_t)strtoul(&s[11], NULL, 16);
- mu->usages = (uint32_t)strtoul(&s[20], NULL, 16);
- mu->flags = (uint8_t)strtoul(&s[29], NULL, 16);
- debug(D_REGISTRY, "Registry loaded machine URL '%s', machine '%s', first: %u, last: %u, usages: %u, flags: %02x", u->url, m->guid, mu->first_t, mu->last_t, mu->usages, mu->flags);
- break;
-
- default:
- error("Registry: ignoring line %zu of filename '%s': %s.", line, registry.db_filename, s);
- break;
- }
- }
- fclose(fp);
-
- return line;
-}