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-rw-r--r--parser/parser.h114
1 files changed, 114 insertions, 0 deletions
diff --git a/parser/parser.h b/parser/parser.h
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--- /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