trace2/tr2_dst.h

   1 #ifndef TR2_DST_H
   2 #define TR2_DST_H
   3
   4 struct strbuf;
   5 #include "trace2/tr2_sysenv.h"
   6
   7 struct tr2_dst {
   8         enum tr2_sysenv_variable sysenv_var;
   9         int fd;
  10         unsigned int initialized : 1;
  11         unsigned int need_close : 1;
  12         unsigned int too_many_files : 1;
  13 };
  14
  15 /*
  16  * Disable TRACE2 on the destination.  In TRACE2 a destination (DST)
  17  * wraps a file descriptor; it is associated with a TARGET which
  18  * defines the formatting.
  19  */
  20 void tr2_dst_trace_disable(struct tr2_dst *dst);
  21
  22 /*
  23  * Return the file descriptor for the DST.
  24  * If 0, the dst is closed or disabled.
  25  */
  26 int tr2_dst_get_trace_fd(struct tr2_dst *dst);
  27
  28 /*
  29  * Return true if the DST is opened for writing.
  30  */
  31 int tr2_dst_trace_want(struct tr2_dst *dst);
  32
  33 /*
  34  * Write a single line/message to the trace file.
  35  */
  36 void tr2_dst_write_line(struct tr2_dst *dst, struct strbuf *buf_line);
  37
  38 #endif /* TR2_DST_H */