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Diffstat (limited to 'parser/parser.h')
| -rw-r--r-- | parser/parser.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/parser/parser.h b/parser/parser.h new file mode 100644 index 000000000..86a837e80 --- /dev/null +++ b/parser/parser.h @@ -0,0 +1,114 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#ifndef NETDATA_INCREMENTAL_PARSER_H +#define NETDATA_INCREMENTAL_PARSER_H 1 + +#include "../daemon/common.h" + +#define PARSER_MAX_CALLBACKS 20 +#define PARSER_MAX_RECOVER_KEYWORDS 128 + +// PARSER return codes +typedef enum parser_rc { + PARSER_RC_OK, // Callback was successful, go on + PARSER_RC_STOP, // Callback says STOP + PARSER_RC_ERROR // Callback failed (abort rest of callbacks) +} PARSER_RC; + +typedef struct pluginsd_action { + PARSER_RC (*set_action)(void *user, RRDSET *st, RRDDIM *rd, long long int value); + PARSER_RC (*begin_action)(void *user, RRDSET *st, usec_t microseconds, int trust_durations); + PARSER_RC (*end_action)(void *user, RRDSET *st); + PARSER_RC (*chart_action) + (void *user, char *type, char *id, char *name, char *family, char *context, char *title, char *units, char *plugin, + char *module, int priority, int update_every, RRDSET_TYPE chart_type, char *options); + PARSER_RC (*dimension_action) + (void *user, RRDSET *st, char *id, char *name, char *algorithm, long multiplier, long divisor, char *options, + RRD_ALGORITHM algorithm_type); + + PARSER_RC (*flush_action)(void *user, RRDSET *st); + PARSER_RC (*disable_action)(void *user); + PARSER_RC (*variable_action)(void *user, RRDHOST *host, RRDSET *st, char *name, int global, calculated_number value); + PARSER_RC (*label_action)(void *user, char *key, char *value, LABEL_SOURCE source); + PARSER_RC (*overwrite_action)(void *user, RRDHOST *host, struct label *new_labels); + + PARSER_RC (*guid_action)(void *user, uuid_t *uuid); + PARSER_RC (*context_action)(void *user, uuid_t *uuid); + PARSER_RC (*tombstone_action)(void *user, uuid_t *uuid); + PARSER_RC (*host_action)(void *user, char *machine_guid, char *hostname, char *registry_hostname, int update_every, char *os, + char *timezone, char *tags); +} PLUGINSD_ACTION; + +typedef enum parser_input_type { + PARSER_INPUT_SPLIT = 1 << 1, + PARSER_INPUT_ORIGINAL = 1 << 2, + PARSER_INPUT_PROCESSED = 1 << 3, + PARSER_NO_PARSE_INIT = 1 << 4, + PARSER_NO_ACTION_INIT = 1 << 5, +} PARSER_INPUT_TYPE; + +#define PARSER_INPUT_FULL (PARSER_INPUT_SPLIT|PARSER_INPUT_ORIGINAL) + +typedef PARSER_RC (*keyword_function)(char **, void *, PLUGINSD_ACTION *plugins_action); + +typedef struct parser_keyword { + char *keyword; + uint32_t keyword_hash; + int func_no; + keyword_function func[PARSER_MAX_CALLBACKS+1]; + struct parser_keyword *next; +} PARSER_KEYWORD; + +typedef struct parser_data { + char *line; + struct parser_data *next; +} PARSER_DATA; + +typedef struct parser { + uint8_t version; // Parser version + RRDHOST *host; + void *input; // Input source e.g. stream + PARSER_DATA *data; // extra input + PARSER_KEYWORD *keyword; // List of parse keywords and functions + PLUGINSD_ACTION *plugins_action; + void *user; // User defined structure to hold extra state between calls + uint32_t flags; + + char *(*read_function)(char *buffer, long unsigned int, void *input); + int (*eof_function)(void *input); + keyword_function unknown_function; + char buffer[PLUGINSD_LINE_MAX]; + char *recover_location[PARSER_MAX_RECOVER_KEYWORDS+1]; + char recover_input[PARSER_MAX_RECOVER_KEYWORDS]; +#ifdef ENABLE_HTTPS + int bytesleft; + char tmpbuffer[PLUGINSD_LINE_MAX]; + char *readfrom; +#endif +} PARSER; + +PARSER *parser_init(RRDHOST *host, void *user, void *input, PARSER_INPUT_TYPE flags); +int parser_add_keyword(PARSER *working_parser, char *keyword, keyword_function func); +int parser_next(PARSER *working_parser); +int parser_action(PARSER *working_parser, char *input); +int parser_push(PARSER *working_parser, char *line); +void parser_destroy(PARSER *working_parser); +int parser_recover_input(PARSER *working_parser); + +extern size_t pluginsd_process(RRDHOST *host, struct plugind *cd, FILE *fp, int trust_durations); + +extern PARSER_RC pluginsd_set(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_begin(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_end(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_chart(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_dimension(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_variable(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_flush(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_disable(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_label(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_overwrite(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_guid(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_context(char **words, void *user, PLUGINSD_ACTION *plugins_action); +extern PARSER_RC pluginsd_tombstone(char **words, void *user, PLUGINSD_ACTION *plugins_action); + +#endif |