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loader: Make evmc_last_error_msg() return error only once

This commit is contained in:
Paweł Bylica 2019-04-17 07:40:59 +02:00
parent bde20b1f4c
commit caf6c2a1bd
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GPG Key ID: 7A0C037434FE77EF
2 changed files with 6 additions and 2 deletions
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4
include/evmc/loader.h
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@ -105,10 +105,12 @@ struct evmc_instance* evmc_load_and_create(const char* filename,
/** /**
* Returns the human-readable message describing the most recent error * Returns the human-readable message describing the most recent error
* that occurred in EVMC loading. * that occurred in EVMC loading since the last call to this function.
* *
* In case any loading function returned ::EVMC_LOADER_SUCCESS this function always returns NULL. * In case any loading function returned ::EVMC_LOADER_SUCCESS this function always returns NULL.
* In case of error code other than success returned, this function MAY return the error message. * In case of error code other than success returned, this function MAY return the error message.
* Calling this function "consumes" the error message and the function will return NULL
* from subsequent invocations.
* This function is not thread-safe. * This function is not thread-safe.
* *
* @return Error message or NULL if no additional information is available. * @return Error message or NULL if no additional information is available.

4
lib/loader/loader.c
View File

@ -140,7 +140,9 @@ exit:
const char* evmc_last_error_msg() const char* evmc_last_error_msg()
{ {
return last_error_msg; const char* m = last_error_msg;
last_error_msg = NULL;
return m;
} }
struct evmc_instance* evmc_load_and_create(const char* filename, struct evmc_instance* evmc_load_and_create(const char* filename,