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#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include "c_c_file.h"
#define SL 200
JNIEXPORT jint JNICALL Java_c_1c_1file_c_1open (JNIEnv *env, jobject jo, jstring s)
{
const char* str = (*env)->GetStringUTFChars(env, s, 0);
int fd = open(str, O_RDWR | O_NOCTTY | O_NDELAY);
if(fd == -1)
printf("Java_cartesian_c_1open: error opening file %s.\n", str);
fcntl(fd, F_SETFL, 0);
return fd;
}
JNIEXPORT void JNICALL Java_c_1c_1file_c_1fcntl (JNIEnv *env, jobject jo, jint fd, jint wait)
{
if(wait)
fcntl(fd, F_SETFL, 0);
else
fcntl(fd, F_SETFL, FNDELAY);
}
JNIEXPORT jint JNICALL Java_c_1c_1file_c_1write (JNIEnv *env, jobject jo, jint fd, jstring s, jint len)
{
const char* str = (*env)->GetStringUTFChars(env, s, 0);
int n = write(fd, str, len);
return n;
}
static int n;
JNIEXPORT jstring JNICALL Java_c_1c_1file_c_1read (JNIEnv *env, jobject jo, jint fd)
{
char str[SL];
n = read(fd, str, SL);
str[n] = 0;
jstring s = (*env)->NewStringUTF(env, str);
return s;
}
JNIEXPORT jint JNICALL Java_c_1c_1file_c_1n_1read (JNIEnv *env, jobject jo)
{
return n;
}
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