コード例 #1
0
void register_libcore_icu_ICU(JNIEnv* env) {
    std::string path;
    path = u_getDataDirectory();
    path += "/";
    path += U_ICUDATA_NAME;
    path += ".dat";

    #define FAIL_WITH_STRERROR(s) \
        ALOGE("Couldn't " s " '%s': %s", path.c_str(), strerror(errno)); \
        abort();
    #define MAYBE_FAIL_WITH_ICU_ERROR(s) \
        if (status != U_ZERO_ERROR) {\
            ALOGE("Couldn't initialize ICU (" s "): %s (%s)", u_errorName(status), path.c_str()); \
            abort(); \
        }

    // Open the file and get its length.
    ScopedFd fd(open(path.c_str(), O_RDONLY));
    if (fd.get() == -1) {
        FAIL_WITH_STRERROR("open");
    }
    struct stat sb;
    if (fstat(fd.get(), &sb) == -1) {
        FAIL_WITH_STRERROR("stat");
    }

    // Map it.
    void* data = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, fd.get(), 0);
    if (data == MAP_FAILED) {
        FAIL_WITH_STRERROR("mmap");
    }

    // Tell the kernel that accesses are likely to be random rather than sequential.
    if (madvise(data, sb.st_size, MADV_RANDOM) == -1) {
        FAIL_WITH_STRERROR("madvise(MADV_RANDOM)");
    }

    // Tell ICU to use our memory-mapped data.
    UErrorCode status = U_ZERO_ERROR;
    udata_setCommonData(data, &status);
    MAYBE_FAIL_WITH_ICU_ERROR("udata_setCommonData");
    // Tell ICU it can *only* use our memory-mapped data.
    udata_setFileAccess(UDATA_NO_FILES, &status);
    MAYBE_FAIL_WITH_ICU_ERROR("udata_setFileAccess");

    // Failures to find the ICU data tend to be somewhat obscure because ICU loads its data on first
    // use, which can be anywhere. Force initialization up front so we can report a nice clear error
    // and bail.
    u_init(&status);
    MAYBE_FAIL_WITH_ICU_ERROR("u_init");
    jniRegisterNativeMethods(env, "libcore/icu/ICU", gMethods, NELEM(gMethods));
}
コード例 #2
0
int register_libcore_icu_ICU(JNIEnv* env) {
    std::string path;

    #define FAIL_WITH_STRERROR(s) \
        ALOGE("Couldn't " s " '%s': %s", path.c_str(), strerror(errno)); \
        abort();
    #define MAYBE_FAIL_WITH_ICU_ERROR(s) \
        if (status != U_ZERO_ERROR) {\
            ALOGE("Couldn't initialize ICU (" s "): %s (%s)", u_errorName(status), path.c_str()); \
            abort(); \
        }

    // RoboVM note: Start change. Look for custom ICU data and fall back to builtin minimal data if not found.
    if (!findCustomICUData(path)) {
        ALOGI("Using builtin minimal ICU data");
        void* data = malloc(out_icudt51l_dat_len);
        if (!data) {
            ALOGE("Failed to allocate %d bytes for builtin ICU data", out_icudt51l_dat_len);
            abort();
        }
        int ret = inflate(out_icudt51l_dat_gz, out_icudt51l_dat_gz_len, data, out_icudt51l_dat_len);
        if (ret != out_icudt51l_dat_len) {
            ALOGE("Failed to inflate %d->%d bytes of builtin ICU data: %d", 
                out_icudt51l_dat_gz_len, out_icudt51l_dat_len, ret);
            abort();
        }

        UErrorCode status = U_ZERO_ERROR;
        udata_setCommonData(data, &status);
        MAYBE_FAIL_WITH_ICU_ERROR("udata_setCommonData");
        // Tell ICU it can *only* use our data.
        udata_setFileAccess(UDATA_NO_FILES, &status);
        MAYBE_FAIL_WITH_ICU_ERROR("udata_setFileAccess");
        // Force initialization up front so we can report a nice clear error and bail.
        u_init(&status);
        MAYBE_FAIL_WITH_ICU_ERROR("u_init");

        return 0;
    }

    ALOGI("Using custom ICU data file: '%s'", path.c_str());
    // RoboVM note: End change.

    // Open the file and get its length.
    ScopedFd fd(open(path.c_str(), O_RDONLY));
    if (fd.get() == -1) {
        FAIL_WITH_STRERROR("open");
    }
    struct stat sb;
    if (fstat(fd.get(), &sb) == -1) {
        FAIL_WITH_STRERROR("stat");
    }

    // Map it.
    void* data = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, fd.get(), 0);
    if (data == MAP_FAILED) {
        FAIL_WITH_STRERROR("mmap");
    }

    // Tell the kernel that accesses are likely to be random rather than sequential.
    if (madvise(data, sb.st_size, MADV_RANDOM) == -1) {
        FAIL_WITH_STRERROR("madvise(MADV_RANDOM)");
    }

    // Tell ICU to use our memory-mapped data.
    UErrorCode status = U_ZERO_ERROR;
    udata_setCommonData(data, &status);
    MAYBE_FAIL_WITH_ICU_ERROR("udata_setCommonData");
    // Tell ICU it can *only* use our memory-mapped data.
    udata_setFileAccess(UDATA_NO_FILES, &status);
    MAYBE_FAIL_WITH_ICU_ERROR("udata_setFileAccess");

    // Failures to find the ICU data tend to be somewhat obscure because ICU loads its data on first
    // use, which can be anywhere. Force initialization up front so we can report a nice clear error
    // and bail.
    u_init(&status);
    MAYBE_FAIL_WITH_ICU_ERROR("u_init");
    return 0;
}