postgres 之 initdb 源码分析 二

概述2.3 函数void set_pglocale_pgservice(const char *argv0, const char *app) 设置一些环境变量信息 /* * set_pglocale_pgservice * * Set application-specific locale and service directory * * This function takes the 2.3 函数voIDset_pglocale_pgservice(const char *argv0,const char *app)
设置一些环境变量信息

/* *	set_pglocale_pgservice * *	Set application-specific locale and service directory * *	This function takes the value of argv[0] rather than a full path. * * (You may be wondering why this is in exec.c.  It requires this module's * services and doesn't introduce any new dependencIEs,so this seems as * good as anyplace.) */voIDset_pglocale_pgservice(const char *argv0,const char *app){	char		path[MAXPGPATH];	char		my_exec_path[MAXPGPATH];	char		env_path[MAXPGPATH + sizeof("PGSYSconfdIR=")];	/* longer than																 * PGLOCALEDIR */	/* don't set LC_ALL in the backend */	if (strcmp(app,PG_TEXTDOMAIN("postgres")) != 0)		setlocale(LC_ALL,"");	if (find_my_exec(argv0,my_exec_path) < 0)		return;#ifdef ENABLE_NLS	get_locale_path(my_exec_path,path);	bindtextdomain(app,path);	textdomain(app);	if (getenv("PGLOCALEDIR") == NulL)	{		/* set for libpq to use */		snprintf(env_path,sizeof(env_path),"PGLOCALEDIR=%s",path);		canonicalize_path(env_path + 12);		putenv(strdup(env_path));	}#endif	if (getenv("PGSYSconfdIR") == NulL)	{		get_etc_path(my_exec_path,path);		/* set for libpq to use */		snprintf(env_path,"PGSYSconfdIR=%s",path);		canonicalize_path(env_path + 13);		putenv(strdup(env_path));	}}

附加信息： （1）环境变量 http://linux.chinaitlab.com/manual/database/PostgreSQL80zhref/source/libpq-envars.html 总结

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