option_utils.h File Reference

#include "postgres_fe.h"
#include "common/file_utils.h"

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Typedefs
typedef void(*	help_handler) (const char *progname)

Functions
void	handle_help_version_opts (int argc, char *argv[], const char *fixed_progname, help_handler hlp)
bool	option_parse_int (const char *optarg, const char *optname, int min_range, int max_range, int *result)
bool	parse_sync_method (const char *optarg, DataDirSyncMethod *sync_method)

Typedef Documentation

help_handler

typedef void(* help_handler) (const char *progname)

Definition at line 19 of file option_utils.h.

Function Documentation

handle_help_version_opts()

void handle_help_version_opts	(	int	argc,
		char *	argv[],
		const char *	fixed_progname,
		help_handler	hlp
	)

Definition at line 24 of file option_utils.c.

{
    if (argc > 1)
    {
        if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
        {
            hlp(get_progname(argv[0]));
            exit(0);
        }
        if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
        {
            printf("%s (PostgreSQL) " PG_VERSION "\n", fixed_progname);
            exit(0);
        }
    }
}

References exit(), get_progname(), and printf.

Referenced by main().

option_parse_int()

bool option_parse_int	(	const char *	optarg,
		const char *	optname,
		int	min_range,
		int	max_range,
		int *	result
	)

Definition at line 50 of file option_utils.c.

{
    char       *endptr;
    int         val;
 
    errno = 0;
    val = strtoint(optarg, &endptr, 10);
 
    /*
     * Skip any trailing whitespace; if anything but whitespace remains before
     * the terminating character, fail.
     */
    while (*endptr != '\0' && isspace((unsigned char) *endptr))
        endptr++;
 
    if (*endptr != '\0')
    {
        pg_log_error("invalid value \"%s\" for option %s",
                     optarg, optname);
        return false;
    }
 
    if (errno == ERANGE || val < min_range || val > max_range)
    {
        pg_log_error("%s must be in range %d..%d",
                     optname, min_range, max_range);
        return false;
    }
 
    if (result)
        *result = val;
    return true;
}

References optarg, pg_log_error, strtoint(), and val.

Referenced by main().

parse_sync_method()

bool parse_sync_method	(	const char *	optarg,
		DataDirSyncMethod *	sync_method
	)

Definition at line 90 of file option_utils.c.

{
    if (strcmp(optarg, "fsync") == 0)
        *sync_method = DATA_DIR_SYNC_METHOD_FSYNC;
    else if (strcmp(optarg, "syncfs") == 0)
    {
#ifdef HAVE_SYNCFS
        *sync_method = DATA_DIR_SYNC_METHOD_SYNCFS;
#else
        pg_log_error("this build does not support sync method \"%s\"",
                     "syncfs");
        return false;
#endif
    }
    else
    {
        pg_log_error("unrecognized sync method: %s", optarg);
        return false;
    }
 
    return true;
}

References DATA_DIR_SYNC_METHOD_FSYNC, DATA_DIR_SYNC_METHOD_SYNCFS, optarg, pg_log_error, and sync_method.

Referenced by main(), and parseCommandLine().