2 * collectd - src/utils_cmds.h
3 * Copyright (C) 2016 Sebastian 'tokkee' Harl
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24 * Sebastian 'tokkee' Harl <sh at tokkee.org>
28 #define UTILS_CMDS_H 1
38 #define CMD_TO_STRING(type) \
39 ((type) == CMD_PUTVAL) ? "PUTVAL" \
43 /* The raw identifier as provided by the user. */
46 /* An array of the fully parsed identifier and all value lists, and their
47 * options as provided by the user. */
57 * The representation of a fully parsed command.
71 * Status codes describing the parse result.
77 CMD_UNKNOWN_COMMAND = -3,
85 * An error handler describes a callback to be invoked when the parser
86 * encounters an error. The user data pointer will be passed to the callback
87 * as the first argument.
90 void (*cb) (void *, cmd_status_t, const char *, va_list);
92 } cmd_error_handler_t;
99 * Reports an error via the specified error handler (if set).
101 void cmd_error (cmd_status_t status, cmd_error_handler_t *err,
102 const char *format, ...);
109 * Parse a command string and populate a command object.
112 * `buffer' The command string to be parsed.
113 * `ret_cmd' The parse result will be stored at this location.
114 * `err' An optional error handler to invoke on error.
117 * CMD_OK on success or the respective error code otherwise.
119 cmd_status_t cmd_parse (char *buffer,
120 cmd_t *ret_cmd, cmd_error_handler_t *err);
122 void cmd_destroy (cmd_t *cmd);
129 * An error callback writing the message to an open file handle using the
130 * format expected by the unixsock or exec plugins.
133 * `ud' Error handler user-data pointer. This must be an open
134 * file-handle (FILE *).
135 * `status' The error status code.
136 * `format' Printf-style format string.
137 * `ap' Variable argument list providing the arguments for the format
140 void cmd_error_fh (void *ud, cmd_status_t status,
141 const char *format, va_list ap);
143 #endif /* UTILS_CMDS_H */