dns_query_time plugin: replace "." with "_" in dimensions

[netdata.git] / src / procfile.h

diff --git a/src/procfile.h b/src/procfile.h
old mode 100755 (executable)
new mode 100644 (file)
index f9bcd95..9876569
--- a/src/procfile.h
+++ b/src/procfile.h
@@ -1,6 +1,6 @@
 /*
  * procfile is a library for reading kernel files from /proc
- * 
+ *
  * The idea is this:
  *
  *  - every file is opened once with procfile_open().
@@ -30,9 +30,9 @@
 // An array of words
 
 typedef struct {
-       uint32_t len;   // used entries
-       uint32_t size;  // capacity
-       char *words[];  // array of pointers
+    size_t len;     // used entries
+    size_t size;    // capacity
+    char *words[];  // array of pointers
 } pfwords;
 
 
@@ -40,30 +40,44 @@ typedef struct {
 // An array of lines
 
 typedef struct {
-       uint32_t words;         // how many words this line has
-       uint32_t first;         // the id of the first word of this line
-                               // in the words array
+    size_t words;   // how many words this line has
+    size_t first;   // the id of the first word of this line
+                    // in the words array
 } ffline;
 
 typedef struct {
-       uint32_t len;           // used entries
-       uint32_t size;          // capacity
-       ffline lines[];         // array of lines
+    size_t len;     // used entries
+    size_t size;    // capacity
+    ffline lines[]; // array of lines
 } pflines;
 
 
 // ----------------------------------------------------------------------------
 // The procfile
 
+#define PROCFILE_FLAG_DEFAULT             0x00000000
+#define PROCFILE_FLAG_NO_ERROR_ON_FILE_IO 0x00000001
+
+typedef enum procfile_separator {
+    PF_CHAR_IS_SEPARATOR,
+    PF_CHAR_IS_NEWLINE,
+    PF_CHAR_IS_WORD,
+    PF_CHAR_IS_QUOTE,
+    PF_CHAR_IS_OPEN,
+    PF_CHAR_IS_CLOSE
+} PF_CHAR_TYPE;
+
 typedef struct {
-       char filename[FILENAME_MAX + 1];
-       int fd;                 // the file desriptor
-       ssize_t len;            // the bytes we have placed into data
-       ssize_t size;           // the bytes we have allocated for data
-       pflines *lines;
-       pfwords *words;
-       char separators[256];
-       char data[];            // allocated buffer to keep file contents
+    char filename[FILENAME_MAX + 1]; // not populated until profile_filename() is called
+
+    uint32_t flags;
+    int fd;               // the file desriptor
+    size_t len;           // the bytes we have placed into data
+    size_t size;          // the bytes we have allocated for data
+    pflines *lines;
+    pfwords *words;
+    PF_CHAR_TYPE separators[256];
+    char data[];          // allocated buffer to keep file contents
 } procfile;
 
 // close the proc file and free all related memory
@@ -73,13 +87,25 @@ extern void procfile_close(procfile *ff);
 extern procfile *procfile_readall(procfile *ff);
 
 // open a /proc or /sys file
-extern procfile *procfile_open(const char *filename, const char *separators);
+extern procfile *procfile_open(const char *filename, const char *separators, uint32_t flags);
+
+// re-open a file
+// if separators == NULL, the last separators are used
+extern procfile *procfile_reopen(procfile *ff, const char *filename, const char *separators, uint32_t flags);
 
 // example walk-through a procfile parsed file
 extern void procfile_print(procfile *ff);
 
+extern void procfile_set_quotes(procfile *ff, const char *quotes);
+extern void procfile_set_open_close(procfile *ff, const char *open, const char *close);
+
+extern char *procfile_filename(procfile *ff);
+
 // ----------------------------------------------------------------------------
 
+// set this to 1, to have procfile adapt its initial buffer allocation to the max allocation used so far
+extern int procfile_adaptive_initial_allocation;
+
 // return the number of lines present
 #define procfile_lines(ff) (ff->lines->len)