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Replace the approach using Foo_thread_args + Foo_thread and manually

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spawned threads with a reusable class Thread.

This is the second idea implemented in the Alik's patch for
BUG#22306: STOP INSTANCE can not be applied for instances in Crashed,
Failed and Abandoned.
Commiting separately to ease review process. 


server-tools/instance-manager/commands.cc:
  Remove an unused header.
server-tools/instance-manager/guardian.cc:
  Use Thread framework instead of manually spawning the Guardian thread.
  Tidy up.
server-tools/instance-manager/guardian.h:
  Use Thread framework instead of manually spawning the Guardian thread.
server-tools/instance-manager/instance.cc:
  Use Thread framework instead of manually spawning the instance
  monitoring thread.
server-tools/instance-manager/listener.cc:
  Use Thread framework instead of manually spawning the 
  mysql connection thread.
server-tools/instance-manager/listener.h:
  Use Thread framework instead of manually spawning the 
  mysql connection thread.
  Rename Listener_thread to Listener for brevity.
server-tools/instance-manager/manager.cc:
  Change references to pointers, as per the coding style.
  Use Thread framework instead of manually spawning threads.
server-tools/instance-manager/mysql_connection.cc:
  Get rid of Mysql_connection_thread_args. Use class Thread framework
  instead. Rename Mysql_connection_thread to Mysql_connection for brevity.
server-tools/instance-manager/mysql_connection.h:
  Get rid of Mysql_connection_thread_args. Use class Thread framework
  instead. Rename Mysql_connection_thread to Mysql_connection for brevity.
server-tools/instance-manager/priv.cc:
  Move set_stacksize_and_create_thread to thread_registry.cc and make it
  static: it is not used anywhere else now.
server-tools/instance-manager/priv.h:
  No public set_stacksize_n_create_thread
server-tools/instance-manager/thread_registry.cc:
  Implement a base Thread class to be used for all Instance Manager
  threads.
server-tools/instance-manager/thread_registry.h:
  Implement a base Thread class to be used for all Instance Manager
  threads.
This commit is contained in:
unknown
2006-11-17 16:11:04 +03:00
parent 211b2bc92a
commit a163ae30f2
13 changed files with 337 additions and 421 deletions
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38
server-tools/instance-manager/priv.cc
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@ -22,17 +22,6 @@
#include "log.h"
#if defined(__ia64__) || defined(__ia64)
/*
We can live with 32K, but reserve 64K. Just to be safe.
On ia64 we need to reserve double of the size.
*/
#define IM_THREAD_STACK_SIZE (128*1024L)
#else
#define IM_THREAD_STACK_SIZE (64*1024)
#endif
/* the pid of the manager process (of the signal thread on the LinuxThreads) */
pid_t manager_pid;
@ -66,33 +55,6 @@ unsigned long bytes_sent = 0L, bytes_received = 0L;
unsigned long mysqld_net_retry_count = 10L;
unsigned long open_files_limit;
/*
Change the stack size and start a thread. Return an error if either
pthread_attr_setstacksize or pthread_create fails.
Arguments are the same as for pthread_create().
*/
int set_stacksize_n_create_thread(pthread_t *thread, pthread_attr_t *attr,
void *(*start_routine)(void *), void *arg)
{
int rc= 0;
#ifndef __WIN__
#ifndef PTHREAD_STACK_MIN
#define PTHREAD_STACK_MIN 32768
#endif
/*
Set stack size to be safe on the platforms with too small
default thread stack.
*/
rc= pthread_attr_setstacksize(attr,
(size_t) (PTHREAD_STACK_MIN +
IM_THREAD_STACK_SIZE));
#endif
if (!rc)
rc= pthread_create(thread, attr, start_routine, arg);
return rc;
}
int create_pid_file(const char *pid_file_name, int pid)