asset/asset.c File Reference

#include <stdarg.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include "class.h"
#include "asset.h"
#include "hash.h"
#include "utils/mime_type.h"
#include "utils/hash.h"
#include "utils/http.h"

Include dependency graph for asset/asset.c:

Go to the source code of this file.

Functions
static int	assetCtor (void *_this, va_list *params)
static void	assetDtor (void *_this)
static unsigned long	assetGetHash (void *_this)
static void	assetHandleDouble (void *_this, void *_doub)
	INIT_IFACE (Class, assetCtor, assetDtor, NULL)
	INIT_IFACE (Hashable, assetGetHash, assetHandleDouble)
	CREATE_CLASS (Asset, NULL, IFACE(Class), IFACE(Hashable))

Detailed Description

Author

Georg Hopp

Copyright

Copyright © 2012 Georg Hopp

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file asset/asset.c.

Function Documentation

static int assetCtor ( void *  _this, va_list *  params  )

static

Definition at line 51 of file asset/asset.c.

References getMimeType(), rfc1123Gmt(), sdbm(), and size.

{
    Asset this = _this;

    struct tm   * tmp;
    struct stat   st;
    char        * fname = va_arg(*params, char*);
    char        * ext;

    this->nfname = va_arg(*params, size_t);

    strncpy(this->fname, fname, 2048);
    this->fname[2048] = '\0';

    this->hash = sdbm(
            (unsigned char *)this->fname,
            this->nfname);

    if (-1 == access(this->fname, R_OK)) {
        return -1;
    } else {
        this->handle = open(this->fname, O_RDONLY);
        fstat(this->handle, &st);
    }

    tmp          = localtime(&(st.st_mtime));
    this->netag  = strftime(this->etag, sizeof(this->etag), "%s", tmp);
    this->nmtime = rfc1123Gmt(
            this->mtime,
            sizeof(this->mtime),
            &(st.st_mtime));

    this->size = st.st_size;

    ext = strrchr(this->fname, '.');
    if (NULL != ext) {
        ext++;
        this->mime_type = getMimeType(ext, strlen(ext));
    } else {
        this->mime_type = "application/octet-stream";
    }

    if (NULL != this->mime_type) {
        this->nmime_type = strlen(this->mime_type);
    } else {
        this->nmime_type = 0;
    }

    if (0 < this->size) {
        this->data = mmap(
                NULL, this->size, PROT_READ, MAP_PRIVATE, this->handle, 0);

        if (MAP_FAILED == this->data) {
            close(this->handle);
            return -1;
        }
    }

    this->ref_count = 1;

    return 0;
}

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static void assetDtor ( void *  _this )

static

Definition at line 114 of file asset/asset.c.

References size.

                                    {
    Asset this = _this;

    if (MAP_FAILED != this->data && NULL != this->data) {
        munmap(this->data, this->size);
    }

    if (0 < this->handle) {
        close(this->handle);
    }
}

static unsigned long assetGetHash ( void *  _this )

static

Definition at line 128 of file asset/asset.c.

{
    Asset this = _this;

    return this->hash;
}

static void assetHandleDouble ( void *  _this, void *  _doub  )

static

Definition at line 137 of file asset/asset.c.

{
}

CREATE_CLASS	(	Asset	,
		NULL	,
		IFACE(Class)	,
		IFACE(Hashable)
	)

INIT_IFACE	(	Class	,
		assetCtor	,
		assetDtor	,
		NULL
	)

INIT_IFACE	(	Hashable	,
		assetGetHash	,
		assetHandleDouble
	)