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Remove cleanup from procfs.c

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This removes the last remaining cleanup from procfs.c, replacing it
with a unique_ptr specialization.

gdb/ChangeLog
2018-09-13  Tom Tromey  <tom@tromey.com>

	* procfs.c (struct procinfo_deleter): New.
	(procinfo_up): New typedef.
	(do_destroy_procinfo_cleanup): Remove.
	(procfs_target::info_proc): Use procinfo_up.  Remove cleanups.
This commit is contained in:
Tom Tromey 2018-08-29 22:49:40 -06:00
parent db68fbe2f9
commit 5b4cbbe357
2 changed files with 19 additions and 10 deletions
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7
gdb/ChangeLog
View File

@ -1,3 +1,10 @@
2018-09-13 Tom Tromey <tom@tromey.com>
* procfs.c (struct procinfo_deleter): New.
(procinfo_up): New typedef.
(do_destroy_procinfo_cleanup): Remove.
(procfs_target::info_proc): Use procinfo_up. Remove cleanups.
2018-09-13 Tom Tromey <tom@tromey.com>
* source.c (add_path): Use gdb::unique_xmalloc_ptr.

22
gdb/procfs.c
View File

@ -272,7 +272,6 @@ static procinfo *find_procinfo_or_die (int pid, int tid);
static procinfo *find_procinfo (int pid, int tid);
static procinfo *create_procinfo (int pid, int tid);
static void destroy_procinfo (procinfo *p);
static void do_destroy_procinfo_cleanup (void *);
static void dead_procinfo (procinfo *p, const char *msg, int killp);
static int open_procinfo_files (procinfo *p, int which);
static void close_procinfo_files (procinfo *p);
@ -549,11 +548,16 @@ destroy_procinfo (procinfo *pi)
}
}
static void
do_destroy_procinfo_cleanup (void *pi)
/* A deleter that calls destroy_procinfo. */
struct procinfo_deleter
{
destroy_procinfo ((procinfo *) pi);
}
void operator() (procinfo *pi) const
{
destroy_procinfo (pi);
}
};
typedef std::unique_ptr<procinfo, procinfo_deleter> procinfo_up;
enum { NOKILL, KILL };
@ -3545,7 +3549,6 @@ info_proc_mappings (procinfo *pi, int summary)
bool
procfs_target::info_proc (const char *args, enum info_proc_what what)
{
struct cleanup *old_chain;
procinfo *process = NULL;
procinfo *thread = NULL;
char *tmp = NULL;
@ -3567,7 +3570,6 @@ procfs_target::info_proc (const char *args, enum info_proc_what what)
error (_("Not supported on this target."));
}
old_chain = make_cleanup (null_cleanup, 0);
gdb_argv built_argv (args);
for (char *arg : built_argv)
{
@ -3582,6 +3584,8 @@ procfs_target::info_proc (const char *args, enum info_proc_what what)
tid = strtoul (arg + 1, NULL, 10);
}
}
procinfo_up temporary_procinfo;
if (pid == 0)
pid = inferior_ptid.pid ();
if (pid == 0)
@ -3596,7 +3600,7 @@ procfs_target::info_proc (const char *args, enum info_proc_what what)
/* No. So open a procinfo for it, but
remember to close it again when finished. */
process = create_procinfo (pid, 0);
make_cleanup (do_destroy_procinfo_cleanup, process);
temporary_procinfo.reset (process);
if (!open_procinfo_files (process, FD_CTL))
proc_error (process, "info proc, open_procinfo_files", __LINE__);
}
@ -3627,8 +3631,6 @@ procfs_target::info_proc (const char *args, enum info_proc_what what)
info_proc_mappings (process, 0);
}
do_cleanups (old_chain);
return true;
}