pgfnames.c File Reference

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

Include dependency graph for pgfnames.c:

Go to the source code of this file.

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

Function Documentation

char** pgfnames

(

const char *

path

)

Definition at line 31 of file pgfnames.c.

References _, closedir(), dirent::d_name, elog, NULL, opendir(), palloc(), pstrdup(), readdir(), repalloc(), strerror(), and WARNING.

Referenced by convert_sourcefiles_in(), rmtree(), and scan_available_timezones().

{
    DIR        *dir;
    struct dirent *file;
    char      **filenames;
    int         numnames = 0;
    int         fnsize = 200;   /* enough for many small dbs */

    dir = opendir(path);
    if (dir == NULL)
    {
#ifndef FRONTEND
        elog(WARNING, "could not open directory \"%s\": %m", path);
#else
        fprintf(stderr, _("could not open directory \"%s\": %s\n"),
                path, strerror(errno));
#endif
        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)
    {
#ifndef FRONTEND
        elog(WARNING, "could not read directory \"%s\": %m", path);
#else
        fprintf(stderr, _("could not read directory \"%s\": %s\n"),
                path, strerror(errno));
#endif
    }

    filenames[numnames] = NULL;

    if (closedir(dir))
    {
#ifndef FRONTEND
        elog(WARNING, "could not close directory \"%s\": %m", path);
#else
        fprintf(stderr, _("could not close directory \"%s\": %s\n"),
                path, strerror(errno));
#endif
    }

    return filenames;
}

void pgfnames_cleanup

(

char **

filenames

)

Definition at line 99 of file pgfnames.c.

References fn(), and pfree().

Referenced by convert_sourcefiles_in(), rmtree(), and scan_available_timezones().

{
    char      **fn;

    for (fn = filenames; *fn; fn++)
        pfree(*fn);

    pfree(filenames);
}