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log_manager.cc

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Added new argument '-s' which takes additional argument composed of list of logfile identifiers. Logfiles listed with '-s' will be written on main memory instead of disk. In practice, the log file in question will be written in /dev/shm but corresponding symlink is added to log directory. In the case of name conflicts with log files and links, a differentiating sequence number is included in hte name of the file. This, however, is done only when existing file is not writable or is of different type (symlink <> file). 
	Added new logfile LOGFILE_DEBUG whose contents will be largerly what was included up to date in trace log. 

	Disabled feature which spreads writes to log files to others because of bug (#338) in the way block buffers are managed.

	Changed log manager parameters to match with the current implementation. List of arguments:
                "-h - help\n"
                "-a <debug prefix>   ............(\"skygw_debug\")\n"
                "-b <debug suffix>   ............(\".log\")\n"
                "-c <trace prefix>   ............(\"skygw_trace\")\n"
                "-d <trace suffix>   ............(\".log\")\n"
                "-e <message prefix> ............(\"skygw_msg\")\n"
                "-f <message suffix> ............(\".log\")\n"
                "-g <error prefix>   ............(\"skygw_err\")\n"
                "-i <error suffix>   ............(\".log\")\n"
                "-j <log path>       ............(\"/tmp\")\n"
                "-s <shmem log file ids> ........(no default)\n";

dcb.c
	dcb_add_to_zombieslist, add dcb to the front of zombies list instead of inserting to the end of it.

gateway.c
	Renamed shutdown_gateway to shutdown_server (Bug #131)
	Call skygw_logmanager_init so that trace and debug logs are written to shared memory.

poll.c 
dcb.h
	Removed some dead code and references to unneeded mutexes.

debugcmd.c
	Added enable/disable log command for debug log.

skygw_utils.cc
	skygw_file_init now takes optional symlink name as a second argument. Symlink is created to point to the file being created.
This commit is contained in:
vraatikka
2013-11-08 12:56:39 +02:00
parent 594f1c294f
commit 9ba7a0d955
15 changed files with 973 additions and 442 deletions
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51
utils/skygw_debug.h
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@ -19,6 +19,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#define __USE_UNIX98 1
#include <pthread.h>
@ -120,16 +121,19 @@ typedef enum skygw_chk_t {
} skygw_chk_t;
# define STRBOOL(b) ((b) ? "true" : "false")
# define STRQTYPE(t) ((t) == QUERY_TYPE_WRITE ? "QUERY_TYPE_WRITE" : \
((t) == QUERY_TYPE_READ ? "QUERY_TYPE_READ" : \
((t) == QUERY_TYPE_SESSION_WRITE ? "QUERY_TYPE_SESSION_WRITE" : \
((t) == QUERY_TYPE_UNKNOWN ? "QUERY_TYPE_UNKNWON" : \
((t) == QUERY_TYPE_LOCAL_READ ? "QUERY_TYPE_LOCAL_READ" : \
"Unknown query type")))))
#define STRLOGID(i) ((i) == LOGFILE_TRACE ? "LOGFILE_TRACE" : \
((i) == LOGFILE_MESSAGE ? "LOGFILE_MESSAGE" : \
((i) == LOGFILE_ERROR ? "LOGFILE_ERROR" : \
"Unknown logfile type")))
((i) == LOGFILE_MESSAGE ? "LOGFILE_MESSAGE" : \
((i) == LOGFILE_ERROR ? "LOGFILE_ERROR" : \
((i) == LOGFILE_DEBUG ? "LOGFILE_DEBUG" : \
"Unknown logfile type"))))
#define STRPACKETTYPE(p) ((p) == COM_INIT_DB ? "COM_INIT_DB" : \
((p) == COM_CREATE_DB ? "COM_CREATE_DB" : \
@ -285,11 +289,11 @@ typedef enum skygw_chk_t {
ss_info_dassert((n->slnode_chk_top == CHK_NUM_SLIST_NODE && \
n->slnode_chk_tail == CHK_NUM_SLIST_NODE), \
"Single-linked list node under- or overflow"); \
}
}
#define CHK_SLIST_CURSOR(c) { \
ss_info_dassert(c->slcursor_chk_top == CHK_NUM_SLIST_CURSOR && \
c->slcursor_chk_tail == CHK_NUM_SLIST_CURSOR, \
ss_info_dassert(c->slcursor_chk_top == CHK_NUM_SLIST_CURSOR && \
c->slcursor_chk_tail == CHK_NUM_SLIST_CURSOR, \
"List cursor under- or overflow"); \
ss_info_dassert(c->slcursor_list != NULL, \
"List cursor doesn't have list"); \
@ -297,34 +301,35 @@ typedef enum skygw_chk_t {
(c->slcursor_pos == NULL && \
c->slcursor_list->slist_head == NULL), \
"List cursor doesn't have position"); \
}
}
#define CHK_QUERY_TEST(q) { \
ss_info_dassert(q->qt_chk_top == CHK_NUM_QUERY_TEST && \
q->qt_chk_tail == CHK_NUM_QUERY_TEST, \
"Query test under- or overflow."); \
}
#define CHK_QUERY_TEST(q) { \
ss_info_dassert(q->qt_chk_top == CHK_NUM_QUERY_TEST && \
q->qt_chk_tail == CHK_NUM_QUERY_TEST, \
"Query test under- or overflow."); \
}
#define CHK_LOGFILE(lf) { \
ss_info_dassert(lf->lf_chk_top == CHK_NUM_LOGFILE && \
ss_info_dassert(lf->lf_chk_top == CHK_NUM_LOGFILE && \
lf->lf_chk_tail == CHK_NUM_LOGFILE, \
"Logfile struct under- or overflow"); \
ss_info_dassert(lf->lf_logpath != NULL && \
lf->lf_name_prefix != NULL && \
lf->lf_name_suffix != NULL && \
lf->lf_full_name != NULL, \
"NULL in name variable\n"); \
ss_info_dassert(lf->lf_filepath != NULL && \
lf->lf_name_prefix != NULL && \
lf->lf_name_suffix != NULL && \
lf->lf_full_file_name != NULL, \
"NULL in name variable\n"); \
ss_info_dassert(lf->lf_id >= LOGFILE_FIRST && \
lf->lf_id <= LOGFILE_LAST, \
"Invalid logfile id\n"); \
lf->lf_id <= LOGFILE_LAST, \
"Invalid logfile id\n"); \
ss_debug( \
(lf->lf_chk_top != CHK_NUM_LOGFILE || \
lf->lf_chk_tail != CHK_NUM_LOGFILE ? \
false : \
(lf->lf_logpath == NULL || \
(lf->lf_filepath == NULL || \
lf->lf_name_prefix == NULL || \
lf->lf_name_suffix == NULL || \
lf->lf_full_name == NULL ? false : true)); \
}
lf->lf_full_file_name == NULL ? false : true));) \
}
#define CHK_FILEWRITER(fwr) { \
ss_info_dassert(fwr->fwr_chk_top == CHK_NUM_FILEWRITER && \