trace2/tr2_cmd_name.c

   1 #include "git-compat-util.h"
   2 #include "strbuf.h"
   3 #include "trace2/tr2_cmd_name.h"
   4
   5 #define TR2_ENVVAR_PARENT_NAME "GIT_TRACE2_PARENT_NAME"
   6
   7 static struct strbuf tr2cmdname_hierarchy = STRBUF_INIT;
   8
   9 void tr2_cmd_name_append_hierarchy(const char *name)
  10 {
  11         const char *parent_name = getenv(TR2_ENVVAR_PARENT_NAME);
  12
  13         strbuf_reset(&tr2cmdname_hierarchy);
  14         if (parent_name && *parent_name) {
  15                 strbuf_addstr(&tr2cmdname_hierarchy, parent_name);
  16                 strbuf_addch(&tr2cmdname_hierarchy, '/');
  17         }
  18         strbuf_addstr(&tr2cmdname_hierarchy, name);
  19
  20         setenv(TR2_ENVVAR_PARENT_NAME, tr2cmdname_hierarchy.buf, 1);
  21 }
  22
  23 const char *tr2_cmd_name_get_hierarchy(void)
  24 {
  25         return tr2cmdname_hierarchy.buf;
  26 }
  27
  28 void tr2_cmd_name_release(void)
  29 {
  30         strbuf_release(&tr2cmdname_hierarchy);
  31 }