1 files changed, 0 insertions, 212 deletions

diff --git a/minzip/SysUtil.c b/minzip/SysUtil.c
deleted file mode 100644
index 49a2522d6..000000000
--- a/minzip/SysUtil.c
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * Copyright 2006 The Android Open Source Project
- *
- * System utilities.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <limits.h>
-#include <errno.h>
-#include <assert.h>
-
-#define LOG_TAG "minzip"
-#include "Log.h"
-#include "SysUtil.h"
-
-/*
- * Having trouble finding a portable way to get this.  sysconf(_SC_PAGE_SIZE)
- * seems appropriate, but we don't have that on the device.  Some systems
- * have getpagesize(2), though the linux man page has some odd cautions.
- */
-#define DEFAULT_PAGE_SIZE   4096
-
-
-/*
- * Create an anonymous shared memory segment large enough to hold "length"
- * bytes.  The actual segment may be larger because mmap() operates on
- * page boundaries (usually 4K).
- */
-static void* sysCreateAnonShmem(size_t length)
-{
-    void* ptr;
-
-    ptr = mmap(NULL, length, PROT_READ | PROT_WRITE,
-            MAP_SHARED | MAP_ANON, -1, 0);
-    if (ptr == MAP_FAILED) {
-        LOGW("mmap(%d, RW, SHARED|ANON) failed: %s\n", (int) length,
-            strerror(errno));
-        return NULL;
-    }
-
-    return ptr;
-}
-
-static int getFileStartAndLength(int fd, off_t *start_, size_t *length_)
-{
-    off_t start, end;
-    size_t length;
-
-    assert(start_ != NULL);
-    assert(length_ != NULL);
-
-    start = lseek(fd, 0L, SEEK_CUR);
-    end = lseek(fd, 0L, SEEK_END);
-    (void) lseek(fd, start, SEEK_SET);
-
-    if (start == (off_t) -1 || end == (off_t) -1) {
-        LOGE("could not determine length of file\n");
-        return -1;
-    }
-
-    length = end - start;
-    if (length == 0) {
-        LOGE("file is empty\n");
-        return -1;
-    }
-
-    *start_ = start;
-    *length_ = length;
-
-    return 0;
-}
-
-/*
- * Pull the contents of a file into an new shared memory segment.  We grab
- * everything from fd's current offset on.
- *
- * We need to know the length ahead of time so we can allocate a segment
- * of sufficient size.
- */
-int sysLoadFileInShmem(int fd, MemMapping* pMap)
-{
-    off_t start;
-    size_t length, actual;
-    void* memPtr;
-
-    assert(pMap != NULL);
-
-    if (getFileStartAndLength(fd, &start, &length) < 0)
-        return -1;
-
-    memPtr = sysCreateAnonShmem(length);
-    if (memPtr == NULL)
-        return -1;
-
-    actual = read(fd, memPtr, length);
-    if (actual != length) {
-        LOGE("only read %d of %d bytes\n", (int) actual, (int) length);
-        sysReleaseShmem(pMap);
-        return -1;
-    }
-
-    pMap->baseAddr = pMap->addr = memPtr;
-    pMap->baseLength = pMap->length = length;
-
-    return 0;
-}
-
-/*
- * Map a file (from fd's current offset) into a shared, read-only memory
- * segment.  The file offset must be a multiple of the page size.
- *
- * On success, returns 0 and fills out "pMap".  On failure, returns a nonzero
- * value and does not disturb "pMap".
- */
-int sysMapFileInShmem(int fd, MemMapping* pMap)
-{
-    off_t start;
-    size_t length;
-    void* memPtr;
-
-    assert(pMap != NULL);
-
-    if (getFileStartAndLength(fd, &start, &length) < 0)
-        return -1;
-
-    memPtr = mmap(NULL, length, PROT_READ, MAP_FILE | MAP_SHARED, fd, start);
-    if (memPtr == MAP_FAILED) {
-        LOGW("mmap(%d, R, FILE|SHARED, %d, %d) failed: %s\n", (int) length,
-            fd, (int) start, strerror(errno));
-        return -1;
-    }
-
-    pMap->baseAddr = pMap->addr = memPtr;
-    pMap->baseLength = pMap->length = length;
-
-    return 0;
-}
-
-/*
- * Map part of a file (from fd's current offset) into a shared, read-only
- * memory segment.
- *
- * On success, returns 0 and fills out "pMap".  On failure, returns a nonzero
- * value and does not disturb "pMap".
- */
-int sysMapFileSegmentInShmem(int fd, off_t start, long length,
-    MemMapping* pMap)
-{
-    off_t dummy;
-    size_t fileLength, actualLength;
-    off_t actualStart;
-    int adjust;
-    void* memPtr;
-
-    assert(pMap != NULL);
-
-    if (getFileStartAndLength(fd, &dummy, &fileLength) < 0)
-        return -1;
-
-    if (start + length > (long)fileLength) {
-        LOGW("bad segment: st=%d len=%ld flen=%d\n",
-            (int) start, length, (int) fileLength);
-        return -1;
-    }
-
-    /* adjust to be page-aligned */
-    adjust = start % DEFAULT_PAGE_SIZE;
-    actualStart = start - adjust;
-    actualLength = length + adjust;
-
-    memPtr = mmap(NULL, actualLength, PROT_READ, MAP_FILE | MAP_SHARED,
-                fd, actualStart);
-    if (memPtr == MAP_FAILED) {
-        LOGW("mmap(%d, R, FILE|SHARED, %d, %d) failed: %s\n",
-            (int) actualLength, fd, (int) actualStart, strerror(errno));
-        return -1;
-    }
-
-    pMap->baseAddr = memPtr;
-    pMap->baseLength = actualLength;
-    pMap->addr = (char*)memPtr + adjust;
-    pMap->length = length;
-
-    LOGVV("mmap seg (st=%d ln=%d): bp=%p bl=%d ad=%p ln=%d\n",
-        (int) start, (int) length,
-        pMap->baseAddr, (int) pMap->baseLength,
-        pMap->addr, (int) pMap->length);
-
-    return 0;
-}
-
-/*
- * Release a memory mapping.
- */
-void sysReleaseShmem(MemMapping* pMap)
-{
-    if (pMap->baseAddr == NULL && pMap->baseLength == 0)
-        return;
-
-    if (munmap(pMap->baseAddr, pMap->baseLength) < 0) {
-        LOGW("munmap(%p, %d) failed: %s\n",
-            pMap->baseAddr, (int)pMap->baseLength, strerror(errno));
-    } else {
-        LOGV("munmap(%p, %d) succeeded\n", pMap->baseAddr, pMap->baseLength);
-        pMap->baseAddr = NULL;
-        pMap->baseLength = 0;
-    }
-}
-