1 files changed, 83 insertions, 0 deletions
diff --git a/tclpd.c b/tclpd.c
index e69de29..72ffa90 100644
--- a/tclpd.c
+++ b/tclpd.c
@@ -0,0 +1,83 @@
+#include "tcl_extras.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <limits.h>
+
+Tcl_Interp *tcl_for_pd = NULL;
+
+extern void tcl_setup(void) {
+    tclpd_setup();
+}
+
+void tclpd_setup(void) {
+    if(tcl_for_pd) {
+        return;
+    }
+
+    post("Tcl loader v" TCLPD_VERSION);
+
+    proxyinlet_setup();
+
+    tcl_for_pd = Tcl_CreateInterp();
+    Tcl_Init(tcl_for_pd);
+    Tclpd_SafeInit(tcl_for_pd);
+
+    char *dirname   = (char*)malloc(PATH_MAX);
+    char *dirresult = (char*)malloc(PATH_MAX);
+    /* nameresult is only a pointer in dirresult space so don't delete[] it. */
+    char *nameresult;
+    if(getcwd(dirname, PATH_MAX) < 0) {
+        post("Tcl loader: FATAL: cannot get current dir");
+        /* exit(69); */ return;
+    }
+
+    int fd = open_via_path(dirname, "tcl", PDSUF, dirresult, &nameresult, PATH_MAX, 1);
+    if(fd >= 0) {
+        close(fd);
+    } else {
+        post("Tcl loader: %s was not found via the -path!", "tcl" PDSUF);
+    }
+
+    Tcl_SetVar(tcl_for_pd, "TCLPD_DIR", dirresult, 0);
+    Tcl_Eval(tcl_for_pd, "package provide Tclpd " TCLPD_VERSION);
+
+    if(Tcl_Eval(tcl_for_pd, "source $TCLPD_DIR/pkgIndex.tcl") != TCL_OK) {
+        post("Tcl loader: error loading %s/pkgIndex.tcl", dirresult);
+    }
+
+    if(Tcl_Eval(tcl_for_pd, "source $TCLPD_DIR/tcl.tcl") == TCL_OK) {
+        post("Tcl loader: loaded %s/tcl.tcl", dirresult);
+    }
+
+    if(Tcl_Eval(tcl_for_pd,"source $env(HOME)/.pd.tcl") == TCL_OK) {
+        post("Tcl loader: loaded ~/.pd.tcl");
+    }
+
+    free(dirresult);
+    free(dirname);
+
+    sys_register_loader(tclpd_do_load_lib);
+}
+
+void tclpd_interp_error(int result) {
+    post("Tcl error: %s", Tcl_GetStringResult(tcl_for_pd));
+    post("  (see stderr for details)");
+
+    fprintf(stderr, "------------------- Tcl error: -------------------\n");
+
+    // Tcl_GetReturnOptions and Tcl_DictObjGet only available in Tcl >= 8.5
+
+#if ((TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION >= 5) || (TCL_MAJOR_VERSION > 8))
+    Tcl_Obj* dict = Tcl_GetReturnOptions(tcl_for_pd, result);
+    Tcl_Obj* errorInfo = NULL;
+    Tcl_Obj* errorInfoK = Tcl_NewStringObj("-errorinfo", -1);
+    Tcl_IncrRefCount(errorInfoK);
+    Tcl_DictObjGet(tcl_for_pd, dict, errorInfoK, &errorInfo);
+    Tcl_DecrRefCount(errorInfoK);
+    fprintf(stderr, "%s\n", Tcl_GetStringFromObj(errorInfo, 0));
+#else
+    fprintf(stderr, "Backtrace not available in Tcl < 8.5. Please upgrade Tcl.\n");
+#endif
+
+    fprintf(stderr, "--------------------------------------------------\n");
+}