int MPIR_Comm_delete_attr_impl(MPIR_Comm * comm_ptr, MPII_Keyval * keyval_ptr) { int mpi_errno = MPI_SUCCESS; MPIR_Attribute *p, **old_p; /* Look for attribute. They are ordered by keyval handle */ old_p = &comm_ptr->attributes; p = comm_ptr->attributes; while (p) { if (p->keyval->handle == keyval_ptr->handle) { break; } old_p = &p->next; p = p->next; } /* We can't unlock yet, because we must not free the attribute until * we know whether the delete function has returned with a 0 status * code */ if (p) { int in_use; /* Run the delete function, if any, and then free the * attribute storage. Note that due to an ambiguity in the * standard, if the usr function returns something other than * MPI_SUCCESS, we should either return the user return code, * or an mpich error code. The precedent set by the Intel * test suite says we should return the user return code. So * we must not ERR_POP here. */ mpi_errno = MPIR_Call_attr_delete(comm_ptr->handle, p); if (mpi_errno) goto fn_fail; /* We found the attribute. Remove it from the list */ *old_p = p->next; /* Decrement the use of the keyval */ MPII_Keyval_release_ref(p->keyval, &in_use); if (!in_use) { MPIR_Handle_obj_free(&MPII_Keyval_mem, p->keyval); } MPID_Attr_free(p); } fn_exit: return mpi_errno; fn_fail: goto fn_exit; }
/*@ MPI_Type_delete_attr - Deletes an attribute value associated with a key on a datatype Input Parameters: + datatype - MPI datatype to which attribute is attached (handle) - type_keyval - The key value of the deleted attribute (integer) .N ThreadSafe .N Fortran .N Errors .N MPI_SUCCESS .N MPI_ERR_OTHER .N MPI_ERR_KEYVAL @*/ int MPI_Type_delete_attr(MPI_Datatype datatype, int type_keyval) { static const char FCNAME[] = "MPI_Type_delete_attr"; int mpi_errno = MPI_SUCCESS; MPID_Datatype *type_ptr = NULL; MPID_Attribute *p, **old_p; MPID_Keyval *keyval_ptr = 0; MPID_MPI_STATE_DECL(MPID_STATE_MPI_TYPE_DELETE_ATTR); MPIR_ERRTEST_INITIALIZED_ORDIE(); /* The thread lock prevents a valid attr delete on the same datatype but in a different thread from causing problems */ MPIU_THREAD_CS_ENTER(ALLFUNC,); MPID_MPI_FUNC_ENTER(MPID_STATE_MPI_TYPE_DELETE_ATTR); /* Validate parameters, especially handles needing to be converted */ # ifdef HAVE_ERROR_CHECKING { MPID_BEGIN_ERROR_CHECKS; { MPIR_ERRTEST_DATATYPE(datatype, "datatype", mpi_errno); MPIR_ERRTEST_KEYVAL(type_keyval, MPID_DATATYPE, "datatype", mpi_errno); MPIR_ERRTEST_KEYVAL_PERM(type_keyval, mpi_errno); } MPID_END_ERROR_CHECKS; } # endif /* Validate parameters and objects (post conversion) */ MPID_Datatype_get_ptr( datatype, type_ptr ); MPID_Keyval_get_ptr( type_keyval, keyval_ptr ); /* Validate parameters and objects (post conversion) */ # ifdef HAVE_ERROR_CHECKING { MPID_BEGIN_ERROR_CHECKS; { /* Validate type_ptr */ MPID_Datatype_valid_ptr( type_ptr, mpi_errno ); /* If type_ptr is not valid, it will be reset to null */ /* Validate keyval_ptr */ if (mpi_errno) goto fn_fail; } MPID_END_ERROR_CHECKS; } # endif /* HAVE_ERROR_CHECKING */ /* ... body of routine ... */ /* Look for attribute. They are ordered by keyval handle */ old_p = &type_ptr->attributes; p = type_ptr->attributes; while (p) { if (p->keyval->handle == keyval_ptr->handle) { break; } old_p = &p->next; p = p->next; } /* We can't unlock yet, because we must not free the attribute until we know whether the delete function has returned with a 0 status code */ if (p) { /* Run the delete function, if any, and then free the attribute storage */ mpi_errno = MPIR_Call_attr_delete( datatype, p ); /* --BEGIN ERROR HANDLING-- */ if (!mpi_errno) { int in_use; /* We found the attribute. Remove it from the list */ *old_p = p->next; /* Decrement the use of the keyval */ MPIR_Keyval_release_ref( p->keyval, &in_use); if (!in_use) { MPIU_Handle_obj_free( &MPID_Keyval_mem, p->keyval ); } MPID_Attr_free(p); } /* --END ERROR HANDLING-- */ } if (mpi_errno != MPI_SUCCESS) goto fn_fail; /* ... end of body of routine ... */ fn_exit: MPID_MPI_FUNC_EXIT(MPID_STATE_MPI_TYPE_DELETE_ATTR); MPIU_THREAD_CS_EXIT(ALLFUNC,); return mpi_errno; fn_fail: /* --BEGIN ERROR HANDLING-- */ # ifdef HAVE_ERROR_CHECKING { mpi_errno = MPIR_Err_create_code( mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER, "**mpi_type_delete_attr", "**mpi_type_delete_attr %D %d", datatype, type_keyval); } # endif mpi_errno = MPIR_Err_return_comm( NULL, FCNAME, mpi_errno ); goto fn_exit; /* --END ERROR HANDLING-- */ }