option_utils.h File Reference

#include "common/file_utils.h"

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Macros
#define	check_mut_excl_opts(set, opt, ...)

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)
void	check_mut_excl_opts_internal (int n,...)

Macro Definition Documentation

check_mut_excl_opts

#define check_mut_excl_opts	(		set,
			opt,
			...
	)

Value:

    check_mut_excl_opts_internal(VA_ARGS_NARGS(__VA_ARGS__) + 2, \
                                 set, opt, __VA_ARGS__)

Definition at line 30 of file option_utils.h.

Typedef Documentation

help_handler

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

Definition at line 17 of file option_utils.h.

Function Documentation

check_mut_excl_opts_internal()

void check_mut_excl_opts_internal ( int  n,   ...  )

extern

Definition at line 125 of file option_utils.c.

{
    char       *first = NULL;
    va_list     args;
 
    Assert(n % 2 == 0);
 
    va_start(args, n);
    for (int i = 0; i < n; i += 2)
    {
        bool        set = va_arg(args, int);
        char       *opt = va_arg(args, char *);
 
        if (set && first)
            pg_fatal("options %s and %s cannot be used together",
                     first, opt);
 
        if (set)
            first = opt;
    }
    va_end(args);
}

References Assert, fb(), i, and pg_fatal.

handle_help_version_opts()

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

extern

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 fb(), get_progname(), and printf.

Referenced by main(), and main().

option_parse_int()

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

extern

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

Referenced by main(), and main().

parse_sync_method()

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

extern

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, fb(), optarg, pg_log_error, and sync_method.

Referenced by main(), main(), and parseCommandLine().