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Added Terminal.getTerminalSize().

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This commit is contained in:
Adam Murdoch
2012-07-29 17:38:57 +10:00
parent c009527afa
commit 979bc0873f
8 changed files with 84 additions and 9 deletions
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16
src/main/cpp/posixFunctions.c
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@@ -3,6 +3,7 @@
#include <sys/stat.h>
#include <errno.h>
#include <unistd.h>
#include <sys/ioctl.h>
void markFailed(JNIEnv *env, jobject result) {
jclass destClass = env->GetObjectClass(result);
@@ -48,3 +49,18 @@ Java_net_rubygrapefruit_platform_internal_PosixTerminalFunctions_isatty(JNIEnv *
return JNI_FALSE;
}
}
JNIEXPORT void JNICALL
Java_net_rubygrapefruit_platform_internal_PosixTerminalFunctions_getTerminalSize(JNIEnv *env, jclass target, jint output, jobject dimension, jobject result) {
struct winsize screen_size;
int retval = ioctl(output+1, TIOCGWINSZ, &screen_size);
if (retval != 0) {
markFailed(env, result);
return;
}
jclass dimensionClass = env->GetObjectClass(dimension);
jfieldID widthField = env->GetFieldID(dimensionClass, "cols", "I");
env->SetIntField(dimension, widthField, screen_size.ws_col);
jfieldID heightField = env->GetFieldID(dimensionClass, "rows", "I");
env->SetIntField(dimension, heightField, screen_size.ws_row);
}