1 files changed, 103 insertions, 0 deletions
diff --git a/collectors/plugins.d/plugins_d.h b/collectors/plugins.d/plugins_d.h
new file mode 100644
index 0000000..a8acf03
--- /dev/null
+++ b/collectors/plugins.d/plugins_d.h
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_PLUGINS_D_H
+#define NETDATA_PLUGINS_D_H 1
+
+#include "daemon/common.h"
+
+#define PLUGINSD_FILE_SUFFIX ".plugin"
+#define PLUGINSD_FILE_SUFFIX_LEN strlen(PLUGINSD_FILE_SUFFIX)
+#define PLUGINSD_CMD_MAX (FILENAME_MAX*2)
+#define PLUGINSD_STOCK_PLUGINS_DIRECTORY_PATH 0
+
+#define PLUGINSD_KEYWORD_CHART                  "CHART"
+#define PLUGINSD_KEYWORD_CHART_DEFINITION_END   "CHART_DEFINITION_END"
+#define PLUGINSD_KEYWORD_DIMENSION              "DIMENSION"
+#define PLUGINSD_KEYWORD_BEGIN                  "BEGIN"
+#define PLUGINSD_KEYWORD_SET                    "SET"
+#define PLUGINSD_KEYWORD_END                    "END"
+#define PLUGINSD_KEYWORD_FLUSH                  "FLUSH"
+#define PLUGINSD_KEYWORD_DISABLE                "DISABLE"
+#define PLUGINSD_KEYWORD_VARIABLE               "VARIABLE"
+#define PLUGINSD_KEYWORD_LABEL                  "LABEL"
+#define PLUGINSD_KEYWORD_OVERWRITE              "OVERWRITE"
+#define PLUGINSD_KEYWORD_CLABEL                 "CLABEL"
+#define PLUGINSD_KEYWORD_CLABEL_COMMIT          "CLABEL_COMMIT"
+#define PLUGINSD_KEYWORD_FUNCTION               "FUNCTION"
+#define PLUGINSD_KEYWORD_FUNCTION_RESULT_BEGIN  "FUNCTION_RESULT_BEGIN"
+#define PLUGINSD_KEYWORD_FUNCTION_RESULT_END    "FUNCTION_RESULT_END"
+
+#define PLUGINSD_KEYWORD_REPLAY_CHART           "REPLAY_CHART"
+#define PLUGINSD_KEYWORD_REPLAY_BEGIN           "RBEGIN"
+#define PLUGINSD_KEYWORD_REPLAY_SET             "RSET"
+#define PLUGINSD_KEYWORD_REPLAY_RRDDIM_STATE    "RDSTATE"
+#define PLUGINSD_KEYWORD_REPLAY_RRDSET_STATE    "RSSTATE"
+#define PLUGINSD_KEYWORD_REPLAY_END             "REND"
+
+#define PLUGINS_FUNCTIONS_TIMEOUT_DEFAULT 10 // seconds
+
+#define PLUGINSD_LINE_MAX_SSL_READ 512
+
+#define PLUGINSD_MAX_WORDS 20
+
+#define PLUGINSD_MAX_DIRECTORIES 20
+extern char *plugin_directories[PLUGINSD_MAX_DIRECTORIES];
+
+struct plugind {
+    char id[CONFIG_MAX_NAME+1];         // config node id
+
+    char filename[FILENAME_MAX+1];      // just the filename
+    char fullfilename[FILENAME_MAX+1];  // with path
+    char cmd[PLUGINSD_CMD_MAX+1];       // the command that it executes
+
+    volatile pid_t pid;
+    netdata_thread_t thread;
+
+    size_t successful_collections;      // the number of times we have seen
+                                        // values collected from this plugin
+
+    size_t serial_failures;             // the number of times the plugin started
+                                        // without collecting values
+
+    int update_every;                   // the plugin default data collection frequency
+    volatile sig_atomic_t obsolete;     // do not touch this structure after setting this to 1
+    volatile sig_atomic_t enabled;      // if this is enabled or not
+
+    time_t started_t;
+    uint32_t capabilities;              // follows the same principles as streaming capabilities
+    struct plugind *next;
+};
+
+extern struct plugind *pluginsd_root;
+
+size_t pluginsd_process(RRDHOST *host, struct plugind *cd, FILE *fp_plugin_input, FILE *fp_plugin_output, int trust_durations);
+
+size_t pluginsd_initialize_plugin_directories();
+
+
+
+#define pluginsd_function_result_begin_to_buffer(wb, transaction, code, content_type, expires)      \
+    buffer_sprintf(wb                                                                               \
+                    , PLUGINSD_KEYWORD_FUNCTION_RESULT_BEGIN " \"%s\" %d \"%s\" %ld\n"              \
+                    , (transaction) ? (transaction) : ""                                            \
+                    , (int)(code)                                                                   \
+                    , (content_type) ? (content_type) : ""                                          \
+                    , (long int)(expires)                                                           \
+    )
+
+#define pluginsd_function_result_end_to_buffer(wb) \
+    buffer_strcat(wb, "\n" PLUGINSD_KEYWORD_FUNCTION_RESULT_END "\n")
+
+#define pluginsd_function_result_begin_to_stdout(transaction, code, content_type, expires)          \
+    fprintf(stdout                                                                                  \
+                    , PLUGINSD_KEYWORD_FUNCTION_RESULT_BEGIN " \"%s\" %d \"%s\" %ld\n"              \
+                    , (transaction) ? (transaction) : ""                                            \
+                    , (int)(code)                                                                   \
+                    , (content_type) ? (content_type) : ""                                          \
+                    , (long int)(expires)                                                           \
+    )
+
+#define pluginsd_function_result_end_to_stdout() \
+    fprintf(stdout, "\n" PLUGINSD_KEYWORD_FUNCTION_RESULT_END "\n")
+
+#endif /* NETDATA_PLUGINS_D_H */