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436252de3e
I grew a bit tired of using ptid_get_{lwp,pid,tid} and friends, so I decided to
make it a bit easier to use by making it a proper class. The fields are now
private, so it's not possible to change a ptid_t field by mistake.
The new methods of ptid_t map to existing functions/practice like this:
ptid_t (pid, lwp, tid) -> ptid_build (pid, lwp, tid)
ptid_t (pid) -> pid_to_ptid (pid)
ptid.is_pid () -> ptid_is_pid (ptid)
ptid == other -> ptid_equal (ptid, other)
ptid != other -> !ptid_equal (ptid, other)
ptid.pid () -> ptid_get_pid (ptid)
ptid.lwp_p () -> ptid_lwp_p (ptid)
ptid.lwp () -> ptid_get_lwp (ptid)
ptid.tid_p () -> ptid_tid_p (ptid)
ptid.tid () -> ptid_get_tid (ptid)
ptid.matches (filter) -> ptid_match (ptid, filter)
I've replaced the implementation of the existing functions with calls to
the new methods. People are encouraged to gradually switch to using the
ptid_t methods instead of the functions (or we can change them all in
one pass eventually).
Also, I'm not sure if it's worth it (because of ptid_t's relatively
small size), but I have made the functions and methods take ptid_t
arguments by const reference instead of by value.
gdb/ChangeLog:
* common/ptid.h (struct ptid): Change to...
(class ptid_t): ... this.
<ptid_t>: New constructors.
<pid, lwp_p, lwp, tid_p, tid, is_pid, operator==, operator!=,
matches>: New methods.
<make_null, make_minus_one>: New static methods.
<pid>: Rename to...
<m_pid>: ...this.
<lwp>: Rename to...
<m_lwp>: ...this.
<tid>: Rename to...
<m_tid>: ...this.
(ptid_build, ptid_get_pid, ptid_get_lwp, ptid_get_tid, ptid_equal,
ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match): Take ptid arguments
as references, move comment to class ptid_t.
* common/ptid.c (null_ptid, minus_one_ptid): Initialize with
ptid_t static methods.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_tid,
ptid_equal, ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match):
Take ptid arguments as references, implement using ptid_t methods.
* unittests/ptid-selftests.c: New file.
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
unittests/ptid-selftests.c.
(SUBDIR_UNITTESTS_OBS): Add unittests/ptid-selftests.o.
gdb/gdbserver/ChangeLog:
* server.c (handle_v_cont): Initialize thread_resume::thread
with null_ptid.
107 lines
1.8 KiB
C
107 lines
1.8 KiB
C
/* The ptid_t type and common functions operating on it.
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Copyright (C) 1986-2017 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "common-defs.h"
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#include "ptid.h"
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/* See ptid.h for these. */
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ptid_t null_ptid = ptid_t::make_null ();
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ptid_t minus_one_ptid = ptid_t::make_minus_one ();
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/* See ptid.h. */
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ptid_t
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ptid_build (int pid, long lwp, long tid)
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{
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return ptid_t (pid, lwp, tid);
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}
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/* See ptid.h. */
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ptid_t
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pid_to_ptid (int pid)
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{
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return ptid_t (pid);
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}
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/* See ptid.h. */
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int
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ptid_get_pid (const ptid_t &ptid)
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{
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return ptid.pid ();
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}
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/* See ptid.h. */
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long
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ptid_get_lwp (const ptid_t &ptid)
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{
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return ptid.lwp ();
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}
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/* See ptid.h. */
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long
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ptid_get_tid (const ptid_t &ptid)
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{
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return ptid.tid ();
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}
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/* See ptid.h. */
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int
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ptid_equal (const ptid_t &ptid1, const ptid_t &ptid2)
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{
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return ptid1 == ptid2;
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}
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/* See ptid.h. */
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int
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ptid_is_pid (const ptid_t &ptid)
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{
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return ptid.is_pid ();
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}
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/* See ptid.h. */
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int
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ptid_lwp_p (const ptid_t &ptid)
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{
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return ptid.lwp_p ();
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}
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/* See ptid.h. */
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int
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ptid_tid_p (const ptid_t &ptid)
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{
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return ptid.tid_p ();
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}
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/* See ptid.h. */
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int
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ptid_match (const ptid_t &ptid, const ptid_t &filter)
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{
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return ptid.matches (filter);
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}
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