From a48d0180c52db47c488628fc61f132c12a20ece9 Mon Sep 17 00:00:00 2001
From: stepan <stepan.sindelar@oracle.com>
Date: Wed, 21 Feb 2018 17:44:15 +0100
Subject: [PATCH] REmbedded API: support main loop initialization in
Rf_initEmbeddedR
Additionally restructured the Rembedded.c file to logical blocks, add visual dividers, clean-up the code.
---
.../truffle/r/engine/shell/REmbedded.java | 22 +-
.../fficall/src/truffle_nfi/Rembedded.c | 463 ++++++++++--------
2 files changed, 263 insertions(+), 222 deletions(-)
diff --git a/com.oracle.truffle.r.engine/src/com/oracle/truffle/r/engine/shell/REmbedded.java b/com.oracle.truffle.r.engine/src/com/oracle/truffle/r/engine/shell/REmbedded.java
index afb26eabdb..a207d8247f 100644
--- a/com.oracle.truffle.r.engine/src/com/oracle/truffle/r/engine/shell/REmbedded.java
+++ b/com.oracle.truffle.r.engine/src/com/oracle/truffle/r/engine/shell/REmbedded.java
@@ -71,7 +71,7 @@ public class REmbedded {
* initialize FastR as we cannot do that until the embedding system has had a chance to adjust
* the {@link RStartParams}, which happens after this call returns.
*/
- private static void initializeR(String[] args) {
+ private static void initializeR(String[] args, boolean initMainLoop) {
assert context == null;
RContext.setEmbedded();
RCmdOptions options = RCmdOptions.parseArguments(RCmdOptions.Client.R, args, false);
@@ -86,6 +86,13 @@ public class REmbedded {
context = Context.newBuilder().allowHostAccess(true).arguments("R", options.getArguments()).in(input).out(stdOut).err(stdErr).build();
consoleHandler.setContext(context);
context.eval(INIT);
+
+ if (initMainLoop) {
+ context.enter();
+ RContext.getInstance().completeEmbeddedInitialization();
+ // TODO: push callbacks
+ // stay in the context TODO should we?
+ }
}
/**
@@ -110,12 +117,10 @@ public class REmbedded {
*/
private static final Source INIT = Source.newBuilder("R", "1", "<embedded>").buildLiteral();
- /**
- * GnuR distinguishes {@code setup_Rmainloop} and {@code run_Rmainloop}. Currently we don't have
- * the equivalent separation in FastR.
- */
- private static void setupRmainloop() {
- // nothing to do
+ private static void endRmainloop(int status) {
+ context.leave();
+ context.close();
+ Utils.systemExit(status);
}
/**
@@ -135,8 +140,7 @@ public class REmbedded {
* Testing vehicle, emulates a native upcall.
*/
public static void main(String[] args) {
- initializeR(args);
- setupRmainloop();
+ initializeR(args, false);
runRmainloop();
}
diff --git a/com.oracle.truffle.r.native/fficall/src/truffle_nfi/Rembedded.c b/com.oracle.truffle.r.native/fficall/src/truffle_nfi/Rembedded.c
index 2ee6783729..001cdcd36e 100644
--- a/com.oracle.truffle.r.native/fficall/src/truffle_nfi/Rembedded.c
+++ b/com.oracle.truffle.r.native/fficall/src/truffle_nfi/Rembedded.c
@@ -44,116 +44,90 @@ int R_DirtyImage; // TODO update this
void *R_GlobalContext; // TODO what?
SA_TYPE SaveAction; // ??
-typedef jint (JNICALL *JNI_CreateJavaVMFunc)(JavaVM **pvm, void **penv, void *args);
-
-static void *dlopen_jvmlib(char *libpath) {
- void *handle = dlopen(libpath, RTLD_GLOBAL | RTLD_NOW);
- if (handle == NULL) {
- fprintf(stderr, "Rf_initialize_R: cannot dlopen %s: %s\n", libpath, dlerror());
- exit(1);
- }
- return handle;
-}
-
-// --------------------
-// JNI helpers
-
-static JNIEnv* getEnv() {
- return jniEnv;
-}
-
-static jmethodID checkGetMethodID(JNIEnv *env, jclass klass, const char *name, const char *sig, int isStatic) {
- jmethodID methodID = isStatic ? (*env)->GetStaticMethodID(env, klass, name, sig) : (*env)->GetMethodID(env, klass, name, sig);
- if (methodID == NULL) {
- char buf[1024];
- strcpy(buf, "failed to find ");
- strcat(buf, isStatic ? "static" : "instance");
- strcat(buf, " method ");
- strcat(buf, name);
- strcat(buf, "(");
- strcat(buf, sig);
- strcat(buf, ")");
- (*env)->FatalError(env, buf);
- }
- return methodID;
-}
+int R_wait_usec; // TODO: necessary to resolve externals? otherwise dead code
-jclass checkFindClass(JNIEnv *env, const char *name) {
- jclass klass = (*env)->FindClass(env, name);
- if (klass == NULL) {
- char buf[1024];
- strcpy(buf, "failed to find class ");
- strcat(buf, name);
- strcat(buf, ".\nDid you set R_HOME to the correct location?");
- (*env)->FatalError(env, buf);
- }
- return (*env)->NewGlobalRef(env, klass);
-}
+typedef jint (JNICALL *JNI_CreateJavaVMFunc)(JavaVM **pvm, void **penv, void *args);
-// ---------------------
-// UpCalls
+// ------------------------------------------------------
+// Forward declarations of static helper functions
-// IDE and tools up-calls
+static void setupOverrides(void);
-CTXT R_getGlobalFunctionContext() {
- return ((call_R_getGlobalFunctionContext) callbacks[R_getGlobalFunctionContext_x])();
-}
+static void *dlopen_jvmlib(char *libpath);
+static JNIEnv* getEnv();
+static jmethodID checkGetMethodID(JNIEnv *env, jclass klass, const char *name, const char *sig, int isStatic);
+static jclass checkFindClass(JNIEnv *env, const char *name);
+static int process_vmargs(int argc, char *argv[], char *vmargv[], char *uargv[]);
+static char **update_environ_with_java_home(void);
+static void print_environ(char **env);
+static char *get_classpath(char *r_home);
-CTXT R_getParentFunctionContext(CTXT c) {
- return ((call_R_getParentFunctionContext) callbacks[R_getParentFunctionContext_x])(c);
-}
-SEXP R_getContextEnv(CTXT c) {
- return ((call_R_getContextEnv) callbacks[R_getContextEnv_x])(c);
-}
+// ----------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------------
+// The embedding API
+// So far it seems that GNU R can be embedded by invoking either:
+// 1) Rf_initEmbeddedR: initializing the main loop without actually running it after which the user
+// can e.g. eval code using Rf_eval, finish with Rf_endEmbeddedR
+// 2) Rf_initialize_R & Rf_mainloop: initializing and runnning the main loop
-SEXP R_getContextFun(CTXT c) {
- return ((call_R_getContextFun) callbacks[R_getContextFun_x])(c);
-}
+// Does the heavy work of starting up the JVM and invoking REmbedded#initializeR, which should be the
+// only upcall to Java made via JNI. If setupRmainloop != 0, then also initialized the main loop (does not run it).
+static int initializeFastR(int argc, char *argv[], int setupRmainloop);
-SEXP R_getContextCall(CTXT c) {
- return ((call_R_getContextCall) callbacks[R_getContextCall_x])(c);
+// initializes R, but user is expected (TODO: probably) to invoke the main loop after that
+int Rf_initialize_R(int argc, char *argv[]) {
+ return initializeFastR(argc, argv, 0);
}
-SEXP R_getContextSrcRef(CTXT c) {
- return ((call_R_getContextSrcRef) callbacks[R_getContextSrcRef_x])(c);
+// initializes R and the main loop without running it
+int Rf_initEmbeddedR(int argc, char *argv[]) {
+ return initializeFastR(argc, argv, 1);
}
-int R_insideBrowser() {
- return ((call_R_insideBrowser) callbacks[R_insideBrowser_x])();
+void R_DefParams(Rstart rs) {
+ // These are the GnuR defaults and correspond to the settings in RStartParams
+ // None of the size params make any sense for FastR
+ rs->R_Quiet = FALSE;
+ rs->R_Slave = FALSE;
+ rs->R_Interactive = TRUE;
+ rs->R_Verbose = FALSE;
+ rs->RestoreAction = SA_RESTORE;
+ rs->SaveAction = SA_SAVEASK;
+ rs->LoadSiteFile = TRUE;
+ rs->LoadInitFile = TRUE;
+ rs->DebugInitFile = FALSE;
+ rs->NoRenviron = FALSE;
}
-int R_isGlobal(CTXT c) {
- return ((call_R_isGlobal) callbacks[R_isGlobal_x])(c);
+// Allows to set-up some params before the main loop is initialized
+// This call has to be made via JNI as we are not in a down-call, i.e. in truffle context, when this gets executed.
+void R_SetParams(Rstart rs) {
+ JNIEnv *jniEnv = getEnv();
+ jmethodID setParamsMethodID = checkGetMethodID(jniEnv, rembeddedClass, "setParams", "(ZZZZZZZIIZ)V", 1);
+ (*jniEnv)->CallStaticVoidMethod(jniEnv, rStartParamsClass, setParamsMethodID, rs->R_Quiet, rs->R_Slave, rs->R_Interactive,
+ rs->R_Verbose, rs->LoadSiteFile, rs->LoadInitFile, rs->DebugInitFile,
+ rs->RestoreAction, rs->SaveAction, rs->NoRenviron);
}
-int R_isEqual(void* x, void* y) {
- return ((call_R_isEqual) callbacks[R_isEqual_x])(x, y);
+// Runs the main REPL loop
+void Rf_mainloop(void) {
+ JNIEnv *jniEnv = getEnv();
+ setupOverrides();
+ jmethodID mainloopMethod = checkGetMethodID(jniEnv, rembeddedClass, "runRmainloop", "()V", 1);
+ (*jniEnv)->CallStaticVoidMethod(jniEnv, rembeddedClass, mainloopMethod);
}
+void R_Suicide(const char *s) { ptr_R_Suicide(s); }
-// separate vm args from user args
-static int process_vmargs(int argc, char *argv[], char *vmargv[], char *uargv[]) {
- int vcount = 0;
- int ucount = 0;
- for (int i = 0; i < argc; i++) {
- char *arg = argv[i];
- if ((arg[0] == '-' && arg[1] == 'X') || (arg[0] == '-' && arg[1] == 'D')) {
- vmargv[vcount++] = arg;
- } else {
- uargv[ucount++] = arg;
- }
- }
- return vcount;
+void Rf_endEmbeddedR(int fatal) {
+ // TODO: invoke com.oracle.truffle.r.engine.shell.REmbedded#endRmainloop
+ (*javaVM)->DestroyJavaVM(javaVM);
+ //TODO fatal
}
-// Forward declarations of helper functions
-static char **update_environ_with_java_home(void);
-static void print_environ(char **env);
-static char *get_classpath(char *r_home);
-
-int Rf_initialize_R(int argc, char *argv[]) {
+static int initializeFastR(int argc, char *argv[], int setupRmainloop) {
if (initialized) {
fprintf(stderr, "%s", "R is already initialized\n");
exit(1);
@@ -242,104 +216,107 @@ int Rf_initialize_R(int argc, char *argv[]) {
rInterfaceCallbacksClass = checkFindClass(jniEnv, "com/oracle/truffle/r/runtime/RInterfaceCallbacks");
rembeddedClass = checkFindClass(jniEnv, "com/oracle/truffle/r/engine/shell/REmbedded");
jclass stringClass = checkFindClass(jniEnv, "java/lang/String");
- jmethodID initializeMethod = checkGetMethodID(jniEnv, rembeddedClass, "initializeR", "([Ljava/lang/String;)V", 1);
+ jmethodID initializeMethod = checkGetMethodID(jniEnv, rembeddedClass, "initializeR", "([Ljava/lang/String;Z)V", 1);
jobjectArray argsArray = (*jniEnv)->NewObjectArray(jniEnv, argc, stringClass, NULL);
for (int i = 0; i < argc; i++) {
jstring arg = (*jniEnv)->NewStringUTF(jniEnv, argv[i]);
(*jniEnv)->SetObjectArrayElement(jniEnv, argsArray, i, arg);
}
+ if (setupRmainloop) {
+ setupOverrides();
+ }
// Can't TRACE this upcall as system not initialized
- (*jniEnv)->CallStaticObjectMethod(jniEnv, rembeddedClass, initializeMethod, argsArray);
+ (*jniEnv)->CallStaticObjectMethod(jniEnv, rembeddedClass, initializeMethod, argsArray, setupRmainloop);
initialized++;
return 0;
}
+// -----------------------------------------------------------------------------------------------
+// -----------------------------------------------------------------------------------------------
+// UpCalls from native to Java (IDE and tools up-calls)
+
char *R_HomeDir(void) {
- // TODO: find out if this function could be invoked before the JVM and FastR get initialized
- // in which case the access to callbacks will cause SIGSEGV
+ // TODO: why here? is it not implemented by RFFI already?
return ((call_R_HomeDir) callbacks[R_HomeDir_x])();
}
-void R_SaveGlobalEnvToFile(const char *f) {
- unimplemented("R_SaveGlobalEnvToFile");
+CTXT R_getGlobalFunctionContext() {
+ return ((call_R_getGlobalFunctionContext) callbacks[R_getGlobalFunctionContext_x])();
}
-void R_Suicide(const char *s) { ptr_R_Suicide(s); }
+CTXT R_getParentFunctionContext(CTXT c) {
+ return ((call_R_getParentFunctionContext) callbacks[R_getParentFunctionContext_x])(c);
+}
-void R_DefParams(Rstart rs) {
- // These are the GnuR defaults and correspond to the settings in RStartParams
- // None of the size params make any sense for FastR
- rs->R_Quiet = FALSE;
- rs->R_Slave = FALSE;
- rs->R_Interactive = TRUE;
- rs->R_Verbose = FALSE;
- rs->RestoreAction = SA_RESTORE;
- rs->SaveAction = SA_SAVEASK;
- rs->LoadSiteFile = TRUE;
- rs->LoadInitFile = TRUE;
- rs->DebugInitFile = FALSE;
-// rs->vsize = R_VSIZE;
-// rs->nsize = R_NSIZE;
-// rs->max_vsize = R_SIZE_T_MAX;
-// rs->max_nsize = R_SIZE_T_MAX;
-// rs->ppsize = R_PPSSIZE;
- rs->NoRenviron = FALSE;
-// R_SizeFromEnv(Rp);
+SEXP R_getContextEnv(CTXT c) {
+ return ((call_R_getContextEnv) callbacks[R_getContextEnv_x])(c);
}
-// This call has to be made via JNI as we are not in a down-call, i.e. in truffle context, when this gets executed.
-void R_SetParams(Rstart rs) {
- JNIEnv *jniEnv = getEnv();
- jmethodID setParamsMethodID = checkGetMethodID(jniEnv, rembeddedClass, "setParams", "(ZZZZZZZIIZ)V", 1);
- (*jniEnv)->CallStaticVoidMethod(jniEnv, rStartParamsClass, setParamsMethodID, rs->R_Quiet, rs->R_Slave, rs->R_Interactive,
- rs->R_Verbose, rs->LoadSiteFile, rs->LoadInitFile, rs->DebugInitFile,
- rs->RestoreAction, rs->SaveAction, rs->NoRenviron);
+SEXP R_getContextFun(CTXT c) {
+ return ((call_R_getContextFun) callbacks[R_getContextFun_x])(c);
}
-void R_SizeFromEnv(Rstart rs) {
- unimplemented("R_SizeFromEnv");
+SEXP R_getContextCall(CTXT c) {
+ return ((call_R_getContextCall) callbacks[R_getContextCall_x])(c);
}
-void R_common_command_line(int *a, char **b, Rstart rs) {
- unimplemented("R_common_command_line");
+SEXP R_getContextSrcRef(CTXT c) {
+ return ((call_R_getContextSrcRef) callbacks[R_getContextSrcRef_x])(c);
}
-void R_set_command_line_arguments(int argc, char **argv) {
- unimplemented("R_set_command_line_arguments");
+int R_insideBrowser() {
+ return ((call_R_insideBrowser) callbacks[R_insideBrowser_x])();
}
+int R_isGlobal(CTXT c) {
+ return ((call_R_isGlobal) callbacks[R_isGlobal_x])(c);
+}
-int Rf_initEmbeddedR(int argc, char *argv[]) {
- Rf_initialize_R(argc, argv);
-// R_Interactive = TRUE;
- setup_Rmainloop();
- return 1;
+int R_isEqual(void* x, void* y) {
+ return ((call_R_isEqual) callbacks[R_isEqual_x])(x, y);
}
-void Rf_endEmbeddedR(int fatal) {
- (*javaVM)->DestroyJavaVM(javaVM);
- //TODO fatal
+// -----------------------------------------------------------------------------------------------
+// -----------------------------------------------------------------------------------------------
+// Downcalls from Java. We invoke these functions via REmbedRFFI
+
+static void writeConsoleImpl(char *cbuf, int len, int otype) {
+ if (ptr_R_WriteConsole == NULL) {
+ // otype gives std (0) or err (1)
+ (*ptr_R_WriteConsoleEx)(cbuf, len, otype);
+ } else {
+ (*ptr_R_WriteConsole)(cbuf, len);
+ }
}
-static void setupOverrides(void);
+void rembedded_cleanup(int x, int y, int z) {
+ ptr_R_CleanUp(x, y, z);
+}
-void Rf_mainloop(void) {
- JNIEnv *jniEnv = getEnv();
- setupOverrides();
- jmethodID mainloopMethod = checkGetMethodID(jniEnv, rembeddedClass, "runRmainloop", "()V", 1);
- (*jniEnv)->CallStaticVoidMethod(jniEnv, rembeddedClass, mainloopMethod);
+void rembedded_suicide(char* msg) {
+ ptr_R_Suicide(msg);
}
-// functions that can be assigned by an embedded client to change behavior
+void rembedded_write_console(char *cbuf, int len) {
+ writeConsoleImpl(cbuf, len, 0);
+}
-// Note: pointer to this function is typically saved by the user to be called from that
-// user's R_Suicide override to actually really commit the suicide. We invoke this through
-// JNI intentionally to avoid any potential problems with NFI being called while destroying the VM.
-void uR_Suicide(const char *x) {
- JNIEnv *jniEnv = getEnv();
- jstring msg = (*jniEnv)->NewStringUTF(jniEnv, x);
- jmethodID suicideMethod = checkGetMethodID(jniEnv, rembeddedClass, "R_Suicide", "(Ljava/lang/String;)V", 1);
- (*jniEnv)->CallStaticVoidMethod(jniEnv, rembeddedClass, suicideMethod, msg);
+void rembedded_write_err_console(char *cbuf, int len) {
+ writeConsoleImpl(cbuf, len, 1);
+}
+
+char* rembedded_read_console(const char* prompt) {
+ unsigned char* cbuf = malloc(sizeof(char) * 1024);
+ int n = (*ptr_R_ReadConsole)(prompt, cbuf, 1024, 0);
+ return cbuf;
+}
+
+// -----------------------------------------------------------------------------------------------
+// -----------------------------------------------------------------------------------------------
+// Unimplemented API functions (to make the linker happy and as a TODO list)
+
+void R_SaveGlobalEnvToFile(const char *f) {
+ unimplemented("R_SaveGlobalEnvToFile");
}
void uR_ShowMessage(const char *x) {
@@ -347,7 +324,8 @@ void uR_ShowMessage(const char *x) {
}
int uR_ReadConsole(const char *a, unsigned char *b, int c, int d) {
- return (int) unimplemented("R_ReadConsole");
+ unimplemented("R_ReadConsole");
+ return 0;
}
void uR_WriteConsole(const char *x, int y) {
@@ -374,17 +352,32 @@ void uR_Busy(int x) {
unimplemented("R_Busy");
}
+void R_SizeFromEnv(Rstart rs) {
+ unimplemented("R_SizeFromEnv");
+}
+
+void R_common_command_line(int *a, char **b, Rstart rs) {
+ unimplemented("R_common_command_line");
+}
+
+void R_set_command_line_arguments(int argc, char **argv) {
+ unimplemented("R_set_command_line_arguments");
+}
+
int uR_ShowFiles(int a, const char **b, const char **c,
const char *d, Rboolean e, const char *f) {
- return (int) unimplemented("R_ShowFiles");
+ unimplemented("R_ShowFiles");
+ return 0;
}
int uR_ChooseFile(int a, char *b, int c) {
- return (int) unimplemented("R_ChooseFile");
+ unimplemented("R_ChooseFile");
+ return 0;
}
int uR_EditFile(const char *a) {
- return (int) unimplemented("R_EditFile");
+ unimplemented("R_EditFile");
+ return 0;
}
void uR_loadhistory(SEXP a, SEXP b, SEXP c, SEXP d) {
@@ -399,8 +392,9 @@ void uR_addhistory(SEXP a, SEXP b, SEXP c, SEXP d) {
unimplemented("R_addhistory");
}
-int uR_EditFiles(int a, const char **b, const char **c, const char *d) {
- return (int)unimplemented("");
+int uR_EditFiles(int a, const char **b, const char **c, const char *d) {
+ unimplemented("uR_EditFiles");
+ return 0;
}
SEXP udo_selectlist(SEXP a, SEXP b, SEXP c, SEXP d) {
@@ -419,6 +413,49 @@ void uR_ProcessEvents(void) {
unimplemented("R_ProcessEvents");
}
+void uR_PolledEvents(void) {
+ unimplemented("R_PolledEvents");
+}
+
+void Rf_jump_to_toplevel() {
+ unimplemented("Rf_jump_to_toplevel");
+}
+
+#include <R_ext/eventloop.h>
+
+fd_set *R_checkActivity(int usec, int ignore_stdin) {
+ unimplemented("R_checkActivity");
+ return NULL;
+}
+
+void R_runHandlers(InputHandler *handlers, fd_set *mask) {
+ unimplemented("R_runHandlers");
+}
+
+// -----------------------------------------------------------------------------------------------
+// -----------------------------------------------------------------------------------------------
+// Functions that can be assigned by an embedded client to change behavior.
+// On the Java side the RInterfaceCallbacks remembers for each callback whether its default
+// value (pointer to the default implementation) was changed for some user defined function
+// and in such case Java down-calls to that function if the event occures. Moreover the default
+// values of those pointers (and functions they point to) should be also functional (not all are yet),
+// because the user code sometimes saves the original value before overriding it to invoke it in the
+// user's overridden version. 'setupOverrides' updates the Java side enum via JNI and is invoked from
+// public functions that initialize the R embedding at the point where those pointers should be
+// already overridden by the user. (We may reconsider that and always down-call if some embedding
+// applications override those pointers after initialization).
+
+
+// Note: pointer to this function is typically saved by the user to be called from that
+// user's R_Suicide override to actually really commit the suicide. We invoke this through
+// JNI intentionally to avoid any potential problems with NFI being called while destroying the VM.
+void uR_Suicide(const char *x) {
+ JNIEnv *jniEnv = getEnv();
+ jstring msg = (*jniEnv)->NewStringUTF(jniEnv, x);
+ jmethodID suicideMethod = checkGetMethodID(jniEnv, rembeddedClass, "R_Suicide", "(Ljava/lang/String;)V", 1);
+ (*jniEnv)->CallStaticVoidMethod(jniEnv, rembeddedClass, suicideMethod, msg);
+}
+
void uR_CleanUp(SA_TYPE x, int y, int z) {
((call_R_CleanUp) callbacks[R_CleanUp_x])(x, y, z);
}
@@ -447,9 +484,9 @@ SEXP (*ptr_do_selectlist)(SEXP, SEXP, SEXP, SEXP) = udo_selectlist;
SEXP (*ptr_do_dataentry)(SEXP, SEXP, SEXP, SEXP) = udo_dataentry;
SEXP (*ptr_do_dataviewer)(SEXP, SEXP, SEXP, SEXP) = udo_dataviewer;
void (*ptr_R_ProcessEvents)() = uR_ProcessEvents;
+void (* R_PolledEvents)(void) = uR_PolledEvents;
-// This call cannot be made via NFI because it is invoked from Rf_mainloop,
-// which is exported C function expected to be invoked by the embedded before actually starting R engine.
+// This call cannot be made via callbacks array because it may be invoked before FastR is fully initialized.
void setupOverrides(void) {
JNIEnv *jniEnv = getEnv();
jmethodID ovrMethodID = checkGetMethodID(jniEnv, rInterfaceCallbacksClass, "override", "(Ljava/lang/String;)V", 1);
@@ -472,74 +509,74 @@ void setupOverrides(void) {
}
}
-static void writeConsoleImpl(char *cbuf, int len, int otype) {
- if (ptr_R_WriteConsole == NULL) {
- // otype gives std (0) or err (1)
- (*ptr_R_WriteConsoleEx)(cbuf, len, otype);
- } else {
- (*ptr_R_WriteConsole)(cbuf, len);
- }
-}
-
-void uR_PolledEvents(void) {
- unimplemented("R_PolledEvents");
-}
-
-void (* R_PolledEvents)(void) = uR_PolledEvents;
-
-void Rf_jump_to_toplevel() {
- unimplemented("Rf_jump_to_toplevel");
-}
-
-#include <R_ext/eventloop.h>
-
-fd_set *R_checkActivity(int usec, int ignore_stdin) {
- return (fd_set*) unimplemented("R_checkActivity");
-}
-
-void R_runHandlers(InputHandler *handlers, fd_set *mask) {
- unimplemented("R_runHandlers");
-}
-
// -----------------------------------------------------------------------------------------------
// -----------------------------------------------------------------------------------------------
-// Downcalls from Java. We invoke these functions via REmbedRFFI
+// Helpers
-void rembedded_cleanup(int x, int y, int z) {
- ptr_R_CleanUp(x, y, z);
+// separate vm args from user args
+static int process_vmargs(int argc, char *argv[], char *vmargv[], char *uargv[]) {
+ int vcount = 0;
+ int ucount = 0;
+ for (int i = 0; i < argc; i++) {
+ char *arg = argv[i];
+ if ((arg[0] == '-' && arg[1] == 'X') || (arg[0] == '-' && arg[1] == 'D')) {
+ vmargv[vcount++] = arg;
+ } else {
+ uargv[ucount++] = arg;
+ }
+ }
+ return vcount;
}
-void rembedded_suicide(char* msg) {
- ptr_R_Suicide(msg);
-}
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <errno.h>
-void rembedded_write_console(char *cbuf, int len) {
- writeConsoleImpl(cbuf, len, 0);
+static void perror_exit(char *msg) {
+ perror(msg);
+ exit(1);
}
-void rembedded_write_err_console(char *cbuf, int len) {
- writeConsoleImpl(cbuf, len, 1);
+static void *dlopen_jvmlib(char *libpath) {
+ void *handle = dlopen(libpath, RTLD_GLOBAL | RTLD_NOW);
+ if (handle == NULL) {
+ fprintf(stderr, "Rf_initialize_R: cannot dlopen %s: %s\n", libpath, dlerror());
+ exit(1);
+ }
+ return handle;
}
-char* rembedded_read_console(const char* prompt) {
- unsigned char* cbuf = malloc(sizeof(char) * 1024);
- int n = (*ptr_R_ReadConsole)(prompt, cbuf, 1024, 0);
- return cbuf;
+static JNIEnv* getEnv() {
+ return jniEnv;
}
-// -----------------------------------------------------------------------------------------------
-// -----------------------------------------------------------------------------------------------
-// Helpers
-
-
-int R_wait_usec; // TODO: necessary to resolve externals? otherwise dead code
-
-#include <unistd.h>
-#include <errno.h>
+static jmethodID checkGetMethodID(JNIEnv *env, jclass klass, const char *name, const char *sig, int isStatic) {
+ jmethodID methodID = isStatic ? (*env)->GetStaticMethodID(env, klass, name, sig) : (*env)->GetMethodID(env, klass, name, sig);
+ if (methodID == NULL) {
+ char buf[1024];
+ strcpy(buf, "failed to find ");
+ strcat(buf, isStatic ? "static" : "instance");
+ strcat(buf, " method ");
+ strcat(buf, name);
+ strcat(buf, "(");
+ strcat(buf, sig);
+ strcat(buf, ")");
+ (*env)->FatalError(env, buf);
+ }
+ return methodID;
+}
-static void perror_exit(char *msg) {
- perror(msg);
- exit(1);
+static jclass checkFindClass(JNIEnv *env, const char *name) {
+ jclass klass = (*env)->FindClass(env, name);
+ if (klass == NULL) {
+ char buf[1024];
+ strcpy(buf, "failed to find class ");
+ strcat(buf, name);
+ strcat(buf, ".\nDid you set R_HOME to the correct location?");
+ (*env)->FatalError(env, buf);
+ }
+ return (*env)->NewGlobalRef(env, klass);
}
// support for getting the correct classpath for the VM
--
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