pgfnames.c File Reference

#include "postgres.h"
#include <dirent.h>

Include dependency graph for pgfnames.c:

Go to the source code of this file.

Macros
#define	pg_log_warning(...)   elog(WARNING, __VA_ARGS__)

Functions
char **	pgfnames (const char *path)
void	pgfnames_cleanup (char **filenames)

Macro Definition Documentation

pg_log_warning

#define pg_log_warning

(

...

)

elog(WARNING, __VA_ARGS__)

Definition at line 24 of file pgfnames.c.

Function Documentation

pgfnames()

char** pgfnames

(

const char *

path

)

Definition at line 37 of file pgfnames.c.

{
    DIR        *dir;
    struct dirent *file;
    char      **filenames;
    int         numnames = 0;
    int         fnsize = 200;   /* enough for many small dbs */
 
    dir = opendir(path);
    if (dir == NULL)
    {
        pg_log_warning("could not open directory \"%s\": %m", path);
        return NULL;
    }
 
    filenames = (char **) palloc(fnsize * sizeof(char *));
 
    while (errno = 0, (file = readdir(dir)) != NULL)
    {
        if (strcmp(file->d_name, ".") != 0 && strcmp(file->d_name, "..") != 0)
        {
            if (numnames + 1 >= fnsize)
            {
                fnsize *= 2;
                filenames = (char **) repalloc(filenames,
                                               fnsize * sizeof(char *));
            }
            filenames[numnames++] = pstrdup(file->d_name);
        }
    }
 
    if (errno)
        pg_log_warning("could not read directory \"%s\": %m", path);
 
    filenames[numnames] = NULL;
 
    if (closedir(dir))
        pg_log_warning("could not close directory \"%s\": %m", path);
 
    return filenames;
}

References closedir(), dirent::d_name, opendir(), palloc(), pg_log_warning, pstrdup(), readdir(), and repalloc().

Referenced by rmtree(), and scan_available_timezones().

pgfnames_cleanup()

void pgfnames_cleanup

(

char **

filenames

)

Definition at line 86 of file pgfnames.c.

{
    char      **fn;
 
    for (fn = filenames; *fn; fn++)
        pfree(*fn);
 
    pfree(filenames);
}

References fn(), and pfree().

Referenced by rmtree(), and scan_available_timezones().