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MDEV-32567 Remove thr_alarm from server codebase

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This allows to simplify net_real_read() and net_real_write() a bit.

Removed some superfluous #ifdef/ifndef MYSQL_SERVER from net_serv.cc
The code always runs in server, either normal or embedded.
Dead code for switching socket between blocking and non-blocking modes,
is also removed.

Removed pthread_kill() with alarm signal that woke up main thread on
server shutdown. Used shutdown(2) on polling sockets instead, to the same
effect.

Removed yet another superstitious pthread_kill(), that ran on non-Windows
in terminate_slave_thread().
This commit is contained in:
Vladislav Vaintroub
2023-10-26 15:02:35 +02:00
committed by Daniel Black
parent 3424ed7d42
commit 013fc02a23
19 changed files with 125 additions and 1515 deletions
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include/my_pthread.h
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@@ -181,7 +181,6 @@ extern int my_pthread_create_detached;
#define PTHREAD_CREATE_DETACHED &my_pthread_create_detached
#define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_GLOBAL
#define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_LOCAL
#define USE_ALARM_THREAD
#endif /* defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM) */
#if defined(_BSDI_VERSION) && _BSDI_VERSION < 199910