diff options
Diffstat (limited to 'generic/tclPkg.c')
| -rw-r--r-- | generic/tclPkg.c | 745 |
1 files changed, 436 insertions, 309 deletions
diff --git a/generic/tclPkg.c b/generic/tclPkg.c index cdf9a8b..223ef93 100644 --- a/generic/tclPkg.c +++ b/generic/tclPkg.c @@ -65,6 +65,18 @@ typedef struct Package { const void *clientData; /* Client data. */ } Package; +typedef struct Require { + void * clientDataPtr; + const char *name; + Package *pkgPtr; + char *versionToProvide; +} Require; + +typedef struct RequireProcArgs { + const char *name; + void *clientDataPtr; +} RequireProcArgs; + /* * Prototypes for functions defined in this file: */ @@ -85,9 +97,15 @@ static void AddRequirementsToResult(Tcl_Interp *interp, int reqc, static void AddRequirementsToDString(Tcl_DString *dstring, int reqc, Tcl_Obj *const reqv[]); static Package * FindPackage(Tcl_Interp *interp, const char *name); -static const char * PkgRequireCore(Tcl_Interp *interp, const char *name, - int reqc, Tcl_Obj *const reqv[], - void *clientDataPtr); +static int PkgRequireCore(ClientData data[], Tcl_Interp *interp, int result); +static int PkgRequireCoreFinal(ClientData data[], Tcl_Interp *interp, int result); +static int PkgRequireCoreCleanup(ClientData data[], Tcl_Interp *interp, int result); +static int PkgRequireCoreStep1(ClientData data[], Tcl_Interp *interp, int result); +static int PkgRequireCoreStep2(ClientData data[], Tcl_Interp *interp, int result); +static int TclNRPkgRequireProc(ClientData clientData, Tcl_Interp *interp, int reqc, Tcl_Obj *const reqv[]); +static int SelectPackage(ClientData data[], Tcl_Interp *interp, int result); +static int SelectPackageFinal(ClientData data[], Tcl_Interp *interp, int result); +static int TclNRPackageObjCmdCleanup(ClientData data[], Tcl_Interp *interp, int result); /* * Helper macros. @@ -365,7 +383,10 @@ Tcl_PkgRequireEx( */ if (version == NULL) { - result = PkgRequireCore(interp, name, 0, NULL, clientDataPtr); + if (Tcl_PkgRequireProc(interp, name, 0, NULL, clientDataPtr) == TCL_OK) { + result = Tcl_GetStringResult(interp); + Tcl_ResetResult(interp); + } } else { if (exact && TCL_OK != CheckVersionAndConvert(interp, version, NULL, NULL)) { @@ -376,10 +397,12 @@ Tcl_PkgRequireEx( Tcl_AppendStringsToObj(ov, "-", version, NULL); } Tcl_IncrRefCount(ov); - result = PkgRequireCore(interp, name, 1, &ov, clientDataPtr); + if (Tcl_PkgRequireProc(interp, name, 1, &ov, clientDataPtr) == TCL_OK) { + result = Tcl_GetStringResult(interp); + Tcl_ResetResult(interp); + } TclDecrRefCount(ov); } - return result; } @@ -394,368 +417,432 @@ Tcl_PkgRequireProc( * available. */ void *clientDataPtr) { - const char *result = - PkgRequireCore(interp, name, reqc, reqv, clientDataPtr); + RequireProcArgs args; + args.name = name; + args.clientDataPtr = clientDataPtr; + return Tcl_NRCallObjProc(interp, TclNRPkgRequireProc, (void *)&args, reqc, reqv); +} - if (result == NULL) { - return TCL_ERROR; - } - Tcl_SetObjResult(interp, Tcl_NewStringObj(result, -1)); +static int +TclNRPkgRequireProc( + ClientData clientData, + Tcl_Interp *interp, + int reqc, + Tcl_Obj *const reqv[]) { + RequireProcArgs *args = clientData; + Tcl_NRAddCallback(interp, PkgRequireCore, (void *)args->name, INT2PTR(reqc), (void *)reqv, args->clientDataPtr); return TCL_OK; } -static const char * -PkgRequireCore( - Tcl_Interp *interp, /* Interpreter in which package is now - * available. */ - const char *name, /* Name of desired package. */ - int reqc, /* Requirements constraining the desired - * version. */ - Tcl_Obj *const reqv[], /* 0 means to use the latest version - * available. */ - void *clientDataPtr) +static int +PkgRequireCore(ClientData data[], Tcl_Interp *interp, int result) { - Interp *iPtr = (Interp *) interp; - Package *pkgPtr; - PkgAvail *availPtr, *bestPtr, *bestStablePtr; - char *availVersion, *bestVersion, *bestStableVersion; - /* Internal rep. of versions */ - int availStable, code, satisfies, pass; - char *script, *pkgVersionI; + const char *name = data[0]; + int reqc = PTR2INT(data[1]); + Tcl_Obj *const *reqv = data[2]; + int code = CheckAllRequirements(interp, reqc, reqv); + Require *reqPtr; + if (code != TCL_OK) { + return code; + } + reqPtr = ckalloc(sizeof(Require)); + Tcl_NRAddCallback(interp, PkgRequireCoreCleanup, reqPtr, NULL, NULL, NULL); + reqPtr->clientDataPtr = data[3]; + reqPtr->name = name; + reqPtr->pkgPtr = FindPackage(interp, name); + if (reqPtr->pkgPtr->version == NULL) { + Tcl_NRAddCallback(interp, SelectPackage, reqPtr, INT2PTR(reqc), (void *)reqv, PkgRequireCoreStep1); + } else { + Tcl_NRAddCallback(interp, PkgRequireCoreFinal, reqPtr, INT2PTR(reqc), (void *)reqv, NULL); + } + return TCL_OK; +} + +static int +PkgRequireCoreStep1(ClientData data[], Tcl_Interp *interp, int result) { Tcl_DString command; + char *script; + Require *reqPtr = data[0]; + int reqc = PTR2INT(data[1]); + Tcl_Obj **const reqv = data[2]; + const char *name = reqPtr->name /* Name of desired package. */; + if (reqPtr->pkgPtr->version == NULL) { + /* + * The package is not in the database. If there is a "package unknown" + * command, invoke it. + */ - if (TCL_OK != CheckAllRequirements(interp, reqc, reqv)) { - return NULL; + script = ((Interp *) interp)->packageUnknown; + if (script == NULL) { + Tcl_NRAddCallback(interp, PkgRequireCoreFinal, reqPtr, INT2PTR(reqc), (void *)reqv, NULL); + } else { + Tcl_DStringInit(&command); + Tcl_DStringAppend(&command, script, -1); + Tcl_DStringAppendElement(&command, name); + AddRequirementsToDString(&command, reqc, reqv); + + Tcl_NRAddCallback(interp, PkgRequireCoreStep2, reqPtr, INT2PTR(reqc), (void *)reqv, NULL); + Tcl_NREvalObj(interp, + Tcl_NewStringObj(Tcl_DStringValue(&command), Tcl_DStringLength(&command)), + TCL_EVAL_GLOBAL + ); + Tcl_DStringFree(&command); + } + return TCL_OK; + } else { + Tcl_NRAddCallback(interp, PkgRequireCoreFinal, reqPtr, INT2PTR(reqc), (void *)reqv, NULL); + } + return TCL_OK; +} + +static int +PkgRequireCoreStep2(ClientData data[], Tcl_Interp *interp, int result) { + Require *reqPtr = data[0]; + int reqc = PTR2INT(data[1]); + Tcl_Obj **const reqv = data[2]; + const char *name = reqPtr->name /* Name of desired package. */; + if ((result != TCL_OK) && (result != TCL_ERROR)) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "bad return code: %d", result)); + Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "BADRESULT", NULL); + result = TCL_ERROR; + } + if (result == TCL_ERROR) { + Tcl_AddErrorInfo(interp, + "\n (\"package unknown\" script)"); + return result; + } + Tcl_ResetResult(interp); + /* pkgPtr may now be invalid, so refresh it. */ + reqPtr->pkgPtr = FindPackage(interp, name); + Tcl_NRAddCallback(interp, SelectPackage, reqPtr, INT2PTR(reqc), (void *)reqv, PkgRequireCoreFinal); + return TCL_OK; +} + +static int +PkgRequireCoreFinal(ClientData data[], Tcl_Interp *interp, int result) { + Require *reqPtr = data[0]; + int reqc = PTR2INT(data[1]), satisfies; + Tcl_Obj **const reqv = data[2]; + char *pkgVersionI; + void *clientDataPtr = reqPtr->clientDataPtr; + const char *name = reqPtr->name /* Name of desired package. */; + if (reqPtr->pkgPtr->version == NULL) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "can't find package %s", name)); + Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "UNFOUND", NULL); + AddRequirementsToResult(interp, reqc, reqv); + return TCL_ERROR; } /* - * It can take up to three passes to find the package: one pass to run the - * "package unknown" script, one to run the "package ifneeded" script for - * a specific version, and a final pass to lookup the package loaded by - * the "package ifneeded" script. + * Ensure that the provided version meets the current requirements. */ - for (pass=1 ;; pass++) { - pkgPtr = FindPackage(interp, name); - if (pkgPtr->version != NULL) { - break; - } + if (reqc != 0) { + CheckVersionAndConvert(interp, reqPtr->pkgPtr->version, &pkgVersionI, NULL); + satisfies = SomeRequirementSatisfied(pkgVersionI, reqc, reqv); - /* - * Check whether we're already attempting to load some version of this - * package (circular dependency detection). - */ + ckfree(pkgVersionI); - if (pkgPtr->clientData != NULL) { + if (!satisfies) { Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "circular package dependency:" - " attempt to provide %s %s requires %s", - name, (char *) pkgPtr->clientData, name)); + "version conflict for package \"%s\": have %s, need", + name, reqPtr->pkgPtr->version)); + Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "VERSIONCONFLICT", + NULL); AddRequirementsToResult(interp, reqc, reqv); - Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "CIRCULARITY", NULL); - return NULL; + return TCL_ERROR; } + } - /* - * The package isn't yet present. Search the list of available - * versions and invoke the script for the best available version. We - * are actually locating the best, and the best stable version. One of - * them is then chosen based on the selection mode. - */ + if (clientDataPtr) { + const void **ptr = (const void **) clientDataPtr; - bestPtr = NULL; - bestStablePtr = NULL; - bestVersion = NULL; - bestStableVersion = NULL; + *ptr = reqPtr->pkgPtr->clientData; + } + Tcl_SetObjResult(interp, Tcl_NewStringObj(reqPtr->pkgPtr->version, -1)); + return TCL_OK; +} - for (availPtr = pkgPtr->availPtr; availPtr != NULL; - availPtr = availPtr->nextPtr) { - if (CheckVersionAndConvert(interp, availPtr->version, - &availVersion, &availStable) != TCL_OK) { - /* - * The provided version number has invalid syntax. This - * should not happen. This should have been caught by the - * 'package ifneeded' registering the package. - */ +static int +PkgRequireCoreCleanup(ClientData data[], Tcl_Interp *interp, int result) { + ckfree(data[0]); + return result; +} - continue; - } + +static int +SelectPackage(ClientData data[], Tcl_Interp *interp, int result) { + PkgAvail *availPtr, *bestPtr, *bestStablePtr; + char *availVersion, *bestVersion, *bestStableVersion; + /* Internal rep. of versions */ + int availStable, satisfies; + Require *reqPtr = data[0]; + int reqc = PTR2INT(data[1]); + Tcl_Obj **const reqv = data[2]; + const char *name = reqPtr->name; + Package *pkgPtr = reqPtr->pkgPtr; + Interp *iPtr = (Interp *) interp; - /* Check satisfaction of requirements before considering the current version further. */ - if (reqc > 0) { - satisfies = SomeRequirementSatisfied(availVersion, reqc, reqv); - if (!satisfies) { - ckfree(availVersion); - availVersion = NULL; - continue; - } - } + /* + * Check whether we're already attempting to load some version of this + * package (circular dependency detection). + */ - if (bestPtr != NULL) { - int res = CompareVersions(availVersion, bestVersion, NULL); + if (pkgPtr->clientData != NULL) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "circular package dependency:" + " attempt to provide %s %s requires %s", + name, (char *) pkgPtr->clientData, name)); + AddRequirementsToResult(interp, reqc, reqv); + Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "CIRCULARITY", NULL); + return TCL_ERROR; + } - /* - * Note: Used internal reps in the comparison! - */ + /* + * The package isn't yet present. Search the list of available + * versions and invoke the script for the best available version. We + * are actually locating the best, and the best stable version. One of + * them is then chosen based on the selection mode. + */ - if (res > 0) { - /* - * The version of the package sought is better than the - * currently selected version. - */ - ckfree(bestVersion); - bestVersion = NULL; - goto newbest; - } - } else { - newbest: - /* We have found a version which is better than our max. */ + bestPtr = NULL; + bestStablePtr = NULL; + bestVersion = NULL; + bestStableVersion = NULL; - bestPtr = availPtr; - CheckVersionAndConvert(interp, bestPtr->version, &bestVersion, NULL); - } + for (availPtr = pkgPtr->availPtr; availPtr != NULL; + availPtr = availPtr->nextPtr) { + if (CheckVersionAndConvert(interp, availPtr->version, + &availVersion, &availStable) != TCL_OK) { + /* + * The provided version number has invalid syntax. This + * should not happen. This should have been caught by the + * 'package ifneeded' registering the package. + */ - if (!availStable) { + continue; + } + + /* Check satisfaction of requirements before considering the current version further. */ + if (reqc > 0) { + satisfies = SomeRequirementSatisfied(availVersion, reqc, reqv); + if (!satisfies) { ckfree(availVersion); availVersion = NULL; continue; } + } + + if (bestPtr != NULL) { + int res = CompareVersions(availVersion, bestVersion, NULL); - if (bestStablePtr != NULL) { - int res = CompareVersions(availVersion, bestStableVersion, NULL); + /* + * Note: Used internal reps in the comparison! + */ + if (res > 0) { /* - * Note: Used internal reps in the comparison! + * The version of the package sought is better than the + * currently selected version. */ - - if (res > 0) { - /* - * This stable version of the package sought is better - * than the currently selected stable version. - */ - ckfree(bestStableVersion); - bestStableVersion = NULL; - goto newstable; - } - } else { - newstable: - /* We have found a stable version which is better than our max stable. */ - bestStablePtr = availPtr; - CheckVersionAndConvert(interp, bestStablePtr->version, &bestStableVersion, NULL); + ckfree(bestVersion); + bestVersion = NULL; + goto newbest; } + } else { + newbest: + /* We have found a version which is better than our max. */ + bestPtr = availPtr; + CheckVersionAndConvert(interp, bestPtr->version, &bestVersion, NULL); + } + + if (!availStable) { ckfree(availVersion); availVersion = NULL; - } /* end for */ - - /* - * Clean up memorized internal reps, if any. - */ - - if (bestVersion != NULL) { - ckfree(bestVersion); - bestVersion = NULL; + continue; } - if (bestStableVersion != NULL) { - ckfree(bestStableVersion); - bestStableVersion = NULL; - } + if (bestStablePtr != NULL) { + int res = CompareVersions(availVersion, bestStableVersion, NULL); - /* - * Now choose a version among the two best. For 'latest' we simply - * take (actually keep) the best. For 'stable' we take the best - * stable, if there is any, or the best if there is nothing stable. - */ - - if ((iPtr->packagePrefer == PKG_PREFER_STABLE) - && (bestStablePtr != NULL)) { - bestPtr = bestStablePtr; - } - - if (bestPtr != NULL) { /* - * We found an ifneeded script for the package. Be careful while - * executing it: this could cause reentrancy, so (a) protect the - * script itself from deletion and (b) don't assume that bestPtr - * will still exist when the script completes. + * Note: Used internal reps in the comparison! */ - char *versionToProvide = bestPtr->version; - PkgFiles *pkgFiles; - PkgName *pkgName; - script = bestPtr->script; - - pkgPtr->clientData = versionToProvide; - Tcl_Preserve(versionToProvide); - Tcl_Preserve(script); - pkgFiles = TclInitPkgFiles(interp); - /* Push "ifneeded" package name in "tclPkgFiles" assocdata. */ - pkgName = ckalloc(sizeof(PkgName) + strlen(name)); - pkgName->nextPtr = pkgFiles->names; - strcpy(pkgName->name, name); - pkgFiles->names = pkgName; - if (bestPtr->pkgIndex) { - TclPkgFileSeen(interp, bestPtr->pkgIndex); - } - code = Tcl_EvalEx(interp, script, -1, TCL_EVAL_GLOBAL); - /* Pop the "ifneeded" package name from "tclPkgFiles" assocdata*/ - pkgFiles->names = pkgName->nextPtr; - ckfree(pkgName); - Tcl_Release(script); - - pkgPtr = FindPackage(interp, name); - if (code == TCL_OK) { - Tcl_ResetResult(interp); - if (pkgPtr->version == NULL) { - code = TCL_ERROR; - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "attempt to provide package %s %s failed:" - " no version of package %s provided", - name, versionToProvide, name)); - Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "UNPROVIDED", - NULL); - } else { - char *pvi, *vi; - - if (CheckVersionAndConvert(interp, pkgPtr->version, &pvi, - NULL) != TCL_OK) { - code = TCL_ERROR; - } else if (CheckVersionAndConvert(interp, - versionToProvide, &vi, NULL) != TCL_OK) { - ckfree(pvi); - code = TCL_ERROR; - } else { - int res = CompareVersions(pvi, vi, NULL); - - ckfree(pvi); - ckfree(vi); - if (res != 0) { - code = TCL_ERROR; - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "attempt to provide package %s %s failed:" - " package %s %s provided instead", - name, versionToProvide, - name, pkgPtr->version)); - Tcl_SetErrorCode(interp, "TCL", "PACKAGE", - "WRONGPROVIDE", NULL); - } - } - } - } else if (code != TCL_ERROR) { - Tcl_Obj *codePtr = Tcl_NewIntObj(code); - - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "attempt to provide package %s %s failed:" - " bad return code: %s", - name, versionToProvide, TclGetString(codePtr))); - Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "BADRESULT", NULL); - TclDecrRefCount(codePtr); - code = TCL_ERROR; - } - - if (code == TCL_ERROR) { - Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( - "\n (\"package ifneeded %s %s\" script)", - name, versionToProvide)); - } - Tcl_Release(versionToProvide); - - if (code != TCL_OK) { + if (res > 0) { /* - * Take a non-TCL_OK code from the script as an indication the - * package wasn't loaded properly, so the package system - * should not remember an improper load. - * - * This is consistent with our returning NULL. If we're not - * willing to tell our caller we got a particular version, we - * shouldn't store that version for telling future callers - * either. + * This stable version of the package sought is better + * than the currently selected stable version. */ - - if (pkgPtr->version != NULL) { - ckfree(pkgPtr->version); - pkgPtr->version = NULL; - } - pkgPtr->clientData = NULL; - return NULL; + ckfree(bestStableVersion); + bestStableVersion = NULL; + goto newstable; } - - break; - } - - /* - * The package is not in the database. If there is a "package unknown" - * command, invoke it (but only on the first pass; after that, we - * should not get here in the first place). - */ - - if (pass > 1) { - break; + } else { + newstable: + /* We have found a stable version which is better than our max stable. */ + bestStablePtr = availPtr; + CheckVersionAndConvert(interp, bestStablePtr->version, &bestStableVersion, NULL); } - script = ((Interp *) interp)->packageUnknown; - if (script != NULL) { - Tcl_DStringInit(&command); - Tcl_DStringAppend(&command, script, -1); - Tcl_DStringAppendElement(&command, name); - AddRequirementsToDString(&command, reqc, reqv); + ckfree(availVersion); + availVersion = NULL; + } /* end for */ - code = Tcl_EvalEx(interp, Tcl_DStringValue(&command), - Tcl_DStringLength(&command), TCL_EVAL_GLOBAL); - Tcl_DStringFree(&command); + /* + * Clean up memorized internal reps, if any. + */ - if ((code != TCL_OK) && (code != TCL_ERROR)) { - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "bad return code: %d", code)); - Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "BADRESULT", NULL); - code = TCL_ERROR; - } - if (code == TCL_ERROR) { - Tcl_AddErrorInfo(interp, - "\n (\"package unknown\" script)"); - return NULL; - } - Tcl_ResetResult(interp); - } + if (bestVersion != NULL) { + ckfree(bestVersion); + bestVersion = NULL; } - if (pkgPtr->version == NULL) { - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "can't find package %s", name)); - Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "UNFOUND", NULL); - AddRequirementsToResult(interp, reqc, reqv); - return NULL; + if (bestStableVersion != NULL) { + ckfree(bestStableVersion); + bestStableVersion = NULL; } /* - * At this point we know that the package is present. Make sure that the - * provided version meets the current requirements. + * Now choose a version among the two best. For 'latest' we simply + * take (actually keep) the best. For 'stable' we take the best + * stable, if there is any, or the best if there is nothing stable. */ - if (reqc != 0) { - CheckVersionAndConvert(interp, pkgPtr->version, &pkgVersionI, NULL); - satisfies = SomeRequirementSatisfied(pkgVersionI, reqc, reqv); + if ((iPtr->packagePrefer == PKG_PREFER_STABLE) + && (bestStablePtr != NULL)) { + bestPtr = bestStablePtr; + } - ckfree(pkgVersionI); + if (bestPtr == NULL) { + Tcl_NRAddCallback(interp, data[3], reqPtr, INT2PTR(reqc), (void *)reqv, NULL); + } else { + /* + * We found an ifneeded script for the package. Be careful while + * executing it: this could cause reentrancy, so (a) protect the + * script itself from deletion and (b) don't assume that bestPtr + * will still exist when the script completes. + */ - if (!satisfies) { + char *versionToProvide = bestPtr->version; + PkgFiles *pkgFiles; + PkgName *pkgName; + + Tcl_Preserve(versionToProvide); + pkgPtr->clientData = versionToProvide; + + pkgFiles = TclInitPkgFiles(interp); + /* Push "ifneeded" package name in "tclPkgFiles" assocdata. */ + pkgName = ckalloc(sizeof(PkgName) + strlen(name)); + pkgName->nextPtr = pkgFiles->names; + strcpy(pkgName->name, name); + pkgFiles->names = pkgName; + if (bestPtr->pkgIndex) { + TclPkgFileSeen(interp, bestPtr->pkgIndex); + } + reqPtr->versionToProvide = versionToProvide; + Tcl_NRAddCallback(interp, SelectPackageFinal, reqPtr, INT2PTR(reqc), (void *)reqv, data[3]); + Tcl_NREvalObj(interp, Tcl_NewStringObj(bestPtr->script, -1), TCL_EVAL_GLOBAL); + } + return TCL_OK; +} + +static int +SelectPackageFinal(ClientData data[], Tcl_Interp *interp, int result) { + Require *reqPtr = data[0]; + int reqc = PTR2INT(data[1]); + Tcl_Obj **const reqv = data[2]; + const char *name = reqPtr->name; + char *versionToProvide = reqPtr->versionToProvide; + + /* Pop the "ifneeded" package name from "tclPkgFiles" assocdata*/ + PkgFiles *pkgFiles = Tcl_GetAssocData(interp, "tclPkgFiles", NULL); + PkgName *pkgName = pkgFiles->names; + pkgFiles->names = pkgName->nextPtr; + ckfree(pkgName); + + reqPtr->pkgPtr = FindPackage(interp, name); + if (result == TCL_OK) { + Tcl_ResetResult(interp); + if (reqPtr->pkgPtr->version == NULL) { + result = TCL_ERROR; Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "version conflict for package \"%s\": have %s, need", - name, pkgPtr->version)); - Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "VERSIONCONFLICT", + "attempt to provide package %s %s failed:" + " no version of package %s provided", + name, versionToProvide, name)); + Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "UNPROVIDED", NULL); - AddRequirementsToResult(interp, reqc, reqv); - return NULL; + } else { + char *pvi, *vi; + + if (CheckVersionAndConvert(interp, reqPtr->pkgPtr->version, &pvi, + NULL) != TCL_OK) { + result = TCL_ERROR; + } else if (CheckVersionAndConvert(interp, + versionToProvide, &vi, NULL) != TCL_OK) { + ckfree(pvi); + result = TCL_ERROR; + } else { + int res = CompareVersions(pvi, vi, NULL); + + ckfree(pvi); + ckfree(vi); + if (res != 0) { + result = TCL_ERROR; + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "attempt to provide package %s %s failed:" + " package %s %s provided instead", + name, versionToProvide, + name, reqPtr->pkgPtr->version)); + Tcl_SetErrorCode(interp, "TCL", "PACKAGE", + "WRONGPROVIDE", NULL); + } + } } + } else if (result != TCL_ERROR) { + Tcl_Obj *codePtr = Tcl_NewIntObj(result); + + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "attempt to provide package %s %s failed:" + " bad return code: %s", + name, versionToProvide, TclGetString(codePtr))); + Tcl_SetErrorCode(interp, "TCL", "PACKAGE", "BADRESULT", NULL); + TclDecrRefCount(codePtr); + result = TCL_ERROR; } - if (clientDataPtr) { - const void **ptr = (const void **) clientDataPtr; + if (result == TCL_ERROR) { + Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( + "\n (\"package ifneeded %s %s\" script)", + name, versionToProvide)); + } + Tcl_Release(versionToProvide); + + if (result != TCL_OK) { + /* + * Take a non-TCL_OK code from the script as an indication the + * package wasn't loaded properly, so the package system + * should not remember an improper load. + * + * This is consistent with our returning NULL. If we're not + * willing to tell our caller we got a particular version, we + * shouldn't store that version for telling future callers + * either. + */ - *ptr = pkgPtr->clientData; + if (reqPtr->pkgPtr->version != NULL) { + ckfree(reqPtr->pkgPtr->version); + reqPtr->pkgPtr->version = NULL; + } + reqPtr->pkgPtr->clientData = NULL; + return result; } - return pkgPtr->version; + + Tcl_NRAddCallback(interp, data[3], reqPtr, INT2PTR(reqc), (void *)reqv, NULL); + return TCL_OK; } /* @@ -861,10 +948,19 @@ Tcl_PkgPresentEx( * *---------------------------------------------------------------------- */ +int +Tcl_PackageObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + return Tcl_NRCallObjProc(interp, TclNRPackageObjCmd, NULL, objc, objv); +} /* ARGSUSED */ int -Tcl_PackageObjCmd( +TclNRPackageObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ @@ -881,7 +977,7 @@ Tcl_PackageObjCmd( PKG_VERSIONS, PKG_VSATISFIES }; Interp *iPtr = (Interp *) interp; - int optionIndex, exact, i, satisfies; + int optionIndex, exact, i, newobjc, satisfies; PkgAvail *availPtr, *prevPtr; Package *pkgPtr; Tcl_HashEntry *hPtr; @@ -890,6 +986,7 @@ Tcl_PackageObjCmd( const char *version; const char *argv2, *argv3, *argv4; char *iva = NULL, *ivb = NULL; + Tcl_Obj *objvListPtr, **newObjvPtr; if (objc < 2) { Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?"); @@ -948,6 +1045,7 @@ Tcl_PackageObjCmd( Tcl_EventuallyFree(availPtr->script, TCL_DYNAMIC); if (availPtr->pkgIndex) { Tcl_EventuallyFree(availPtr->pkgIndex, TCL_DYNAMIC); + availPtr->pkgIndex = NULL; } ckfree(availPtr); } @@ -1001,6 +1099,7 @@ Tcl_PackageObjCmd( Tcl_EventuallyFree(availPtr->script, TCL_DYNAMIC); if (availPtr->pkgIndex) { Tcl_EventuallyFree(availPtr->pkgIndex, TCL_DYNAMIC); + availPtr->pkgIndex = NULL; } break; } @@ -1012,7 +1111,7 @@ Tcl_PackageObjCmd( } if (availPtr == NULL) { availPtr = ckalloc(sizeof(PkgAvail)); - availPtr->pkgIndex = 0; + availPtr->pkgIndex = NULL; DupBlock(availPtr->version, argv3, (unsigned) length + 1); if (prevPtr == NULL) { @@ -1133,7 +1232,6 @@ Tcl_PackageObjCmd( argv2 = TclGetString(objv[2]); if ((argv2[0] == '-') && (strcmp(argv2, "-exact") == 0)) { Tcl_Obj *ov; - int res; if (objc != 5) { goto requireSyntax; @@ -1153,17 +1251,38 @@ Tcl_PackageObjCmd( Tcl_AppendStringsToObj(ov, "-", version, NULL); version = NULL; argv3 = TclGetString(objv[3]); + Tcl_IncrRefCount(objv[3]); + + objvListPtr = Tcl_NewListObj(0, NULL); + Tcl_IncrRefCount(objvListPtr); + Tcl_ListObjAppendElement(interp, objvListPtr, ov); + Tcl_ListObjGetElements(interp, objvListPtr, &newobjc, &newObjvPtr); - Tcl_IncrRefCount(ov); - res = Tcl_PkgRequireProc(interp, argv3, 1, &ov, NULL); - TclDecrRefCount(ov); - return res; + Tcl_NRAddCallback(interp, TclNRPackageObjCmdCleanup, objv[3], objvListPtr, NULL, NULL); + Tcl_NRAddCallback(interp, PkgRequireCore, (void *)argv3, INT2PTR(newobjc), newObjvPtr, NULL); + return TCL_OK; } else { + int i, newobjc = objc-3; + Tcl_Obj *const *newobjv = objv + 3; if (CheckAllRequirements(interp, objc-3, objv+3) != TCL_OK) { return TCL_ERROR; } + objvListPtr = Tcl_NewListObj(0, NULL); + Tcl_IncrRefCount(objvListPtr); + Tcl_IncrRefCount(objv[2]); + for (i = 0; i < newobjc; i++) { + + /* + * Tcl_Obj structures may have come from another interpreter, + * so duplicate them. + */ - return Tcl_PkgRequireProc(interp, argv2, objc-3, objv+3, NULL); + Tcl_ListObjAppendElement(interp, objvListPtr, Tcl_DuplicateObj(newobjv[i])); + } + Tcl_ListObjGetElements(interp, objvListPtr, &newobjc, &newObjvPtr); + Tcl_NRAddCallback(interp, TclNRPackageObjCmdCleanup, objv[2], objvListPtr, NULL, NULL); + Tcl_NRAddCallback(interp, PkgRequireCore, (void *)argv2, INT2PTR(newobjc), newObjvPtr, NULL); + return TCL_OK; } break; case PKG_UNKNOWN: { @@ -1303,6 +1422,13 @@ Tcl_PackageObjCmd( } return TCL_OK; } + +static int +TclNRPackageObjCmdCleanup(ClientData data[], Tcl_Interp *interp, int result) { + TclDecrRefCount((Tcl_Obj *)data[0]); + TclDecrRefCount((Tcl_Obj *)data[1]); + return result; +} /* *---------------------------------------------------------------------- @@ -1384,6 +1510,7 @@ TclFreePackageInfo( Tcl_EventuallyFree(availPtr->script, TCL_DYNAMIC); if (availPtr->pkgIndex) { Tcl_EventuallyFree(availPtr->pkgIndex, TCL_DYNAMIC); + availPtr->pkgIndex = NULL; } ckfree(availPtr); } |