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Commit917c8bb

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On win32, there is currently no way to get the equivalent function of
the "ps" argument list on Unix - meaning that there is no way toidentify for example the stats processors or the bgwriter.This patch adds this functionality, in a bit of a crufty way. It createsa kernel Event object with the name of what would be in the title. Thiscan be viewed using for example Process Explorer.It's been very handy for me during both debugging and using. I haven'tfigured a better way, but perhaps someone has one that's less crufty? Ifnot, here is at least a working patch :-)Magnus Hagander
1 parent1646586 commit917c8bb

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‎src/backend/utils/misc/ps_status.c

Lines changed: 35 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -5,7 +5,7 @@
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* to contain some useful information. Mechanism differs wildly across
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* platforms.
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*
8-
* $PostgreSQL: pgsql/src/backend/utils/misc/ps_status.c,v 1.21 2004/08/29 05:06:51 momjian Exp $
8+
* $PostgreSQL: pgsql/src/backend/utils/misc/ps_status.c,v 1.22 2004/12/02 22:28:22 momjian Exp $
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*
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* Copyright (c) 2000-2004, PostgreSQL Global Development Group
1111
* various details abducted from various places
@@ -65,6 +65,8 @@ extern char **environ;
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#definePS_USE_CHANGE_ARGV
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#elif defined(__linux__)|| defined(_AIX)|| defined(__sgi)|| (defined(sun)&& !defined(BSD))|| defined(ultrix)|| defined(__ksr__)|| defined(__osf__)|| defined(__QNX__)|| defined(__svr4__)|| defined(__svr5__)|| defined(__darwin__)
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#definePS_USE_CLOBBER_ARGV
68+
#elif defined (WIN32)
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#definePS_USE_WIN32
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#else
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#definePS_USE_NONE
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#endif
@@ -95,6 +97,28 @@ static size_t ps_buffer_fixed_size;/* size of the constant prefix */
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staticintsave_argc;
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staticchar**save_argv;
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100+
#ifdefWIN32
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/*
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* Win32 does not support showing any changed arguments. To make it
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* at all possible to track which backend is doing what, we create
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* a named object that can be viewed with for example Process Explorer
105+
*/
106+
staticHANDLEident_handle=INVALID_HANDLE_VALUE;
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staticvoidpgwin32_update_ident(char*ident)
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{
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charname[PS_BUFFER_SIZE+32];
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if (ident_handle!=INVALID_HANDLE_VALUE)
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CloseHandle(ident_handle);
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sprintf(name,"pgident: %s",ident);
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ident_handle=CreateEvent(NULL,
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TRUE,
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FALSE,
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name);
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}
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#endif
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/*
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* Call this early in startup to save the original argc/argv values.
@@ -267,6 +291,11 @@ init_ps_display(const char *username, const char *dbname,
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#endif
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ps_buffer_fixed_size=strlen(ps_buffer);
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#ifdefWIN32
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pgwin32_update_ident(ps_buffer);
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#endif
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270299
#endif/* not PS_USE_NONE */
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}
272301

@@ -327,6 +356,11 @@ set_ps_display(const char *activity)
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MemSet(ps_buffer+buflen,PS_PADDING,ps_buffer_size-buflen);
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}
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#endif/* PS_USE_CLOBBER_ARGV */
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#ifdefWIN32
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pgwin32_update_ident(ps_buffer);
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#endif
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#endif/* not PS_USE_NONE */
331365
}
332366

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