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* [binutils-gdb] gdbsupport: add type definitions for pid, lwp and tid
@ 2023-02-02 15:08 Simon Marchi
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From: Simon Marchi @ 2023-02-02 15:08 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7b065306be39502cd2e6b60696280ac720c67e66
commit 7b065306be39502cd2e6b60696280ac720c67e66
Author: Simon Marchi <simon.marchi@efficios.com>
Date: Fri Sep 23 11:55:32 2022 -0400
gdbsupport: add type definitions for pid, lwp and tid
A following patch will want to declare variables of the same type as
some ptid_t components. To make that easy (and avoid harcoding those
types everywhere), define some type definitions in the ptid_t struct for
each of them. Use them throughout ptid.h.
I initially used pid_t, lwp_t and tid_t, but there is the risk of some
system defining the pid_t type using a macro instead of a typedef, which
would break things. So, use the _type suffix instead.
Change-Id: I820b0bea9dafcb4914f1c9ba4bb96b5c666c8dec
Approved-By: Andrew Burgess <aburgess@redhat.com>
Diff:
---
gdbsupport/ptid.h | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/gdbsupport/ptid.h b/gdbsupport/ptid.h
index 365e11c6db5..aa296b83181 100644
--- a/gdbsupport/ptid.h
+++ b/gdbsupport/ptid.h
@@ -39,6 +39,10 @@
class ptid_t
{
public:
+ using pid_type = int;
+ using lwp_type = long;
+ using tid_type = ULONGEST;
+
/* Must have a trivial defaulted default constructor so that the
type remains POD. */
ptid_t () noexcept = default;
@@ -48,13 +52,13 @@ public:
A ptid with only a PID (LWP and TID equal to zero) is usually used to
represent a whole process, including all its lwps/threads. */
- explicit constexpr ptid_t (int pid, long lwp = 0, ULONGEST tid = 0)
+ explicit constexpr ptid_t (pid_type pid, lwp_type lwp = 0, tid_type tid = 0)
: m_pid (pid), m_lwp (lwp), m_tid (tid)
{}
/* Fetch the pid (process id) component from the ptid. */
- constexpr int pid () const
+ constexpr pid_type pid () const
{ return m_pid; }
/* Return true if the ptid's lwp member is non-zero. */
@@ -64,7 +68,7 @@ public:
/* Fetch the lwp (lightweight process) component from the ptid. */
- constexpr long lwp () const
+ constexpr lwp_type lwp () const
{ return m_lwp; }
/* Return true if the ptid's tid member is non-zero. */
@@ -74,7 +78,7 @@ public:
/* Fetch the tid (thread id) component from a ptid. */
- constexpr ULONGEST tid () const
+ constexpr tid_type tid () const
{ return m_tid; }
/* Return true if the ptid represents a whole process, including all its
@@ -144,13 +148,13 @@ public:
private:
/* Process id. */
- int m_pid;
+ pid_type m_pid;
/* Lightweight process id. */
- long m_lwp;
+ lwp_type m_lwp;
/* Thread id. */
- ULONGEST m_tid;
+ tid_type m_tid;
};
/* Functor to hash a ptid. */
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