stumpless 2.2.0
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err.h File Reference

Macro functions that log messages and entries at the err level. More...

Go to the source code of this file.

Macros

#define stump_er(...)
 Logs a message to the current target with err severity.
 
#define stump_er_str(message)
 Logs a message to the current target with err severity.
 
#define stump_er_entry(target, entry)   stumpless_add_entry( ( target ), ( entry ) )
 Adds an entry to a given target with err severity.
 
#define stump_er_log(target, priority, ...)   stumpless_add_log( ( target ), ( priority ), __VA_ARGS__ )
 Adds a message to a given target with the specified priority.
 
#define stump_er_log_str(target, priority, message)   stumpless_add_log_str( ( target ), ( priority ), ( message ) )
 Adds a message to a given target with the specified priority.
 
#define stump_er_message(target, ...)
 Adds a message to a given target with err severity.
 
#define stump_er_message_str(target, message)
 Adds a message to a given target with err severity.
 
#define stumplog_er(priority, ...)   stumplog( ( priority ), __VA_ARGS__ )
 Adds a message to the current target with the specified priority.
 
#define stumplog_er_str(priority, message)   stumplog_str( ( priority ), ( message ) )
 Adds a message to the current target with the specified priority.
 

Detailed Description

Macro functions that log messages and entries at the err level.

These can be turned into no-ops at compile time by defining STUMPLESS_DISABLE_ERR_LEVEL during build, or at least before inclusion of this header (or stumpless.h).

Macro Definition Documentation

◆ stump_er

#define stump_er ( ...)
Value:
STUMPLESS_SEVERITY_ERR | \
__VA_ARGS__ )
#define STUMPLESS_DEFAULT_FACILITY
The facility code to use when one is not supplied.
Definition config.h:43
STUMPLESS_PUBLIC_FUNCTION struct stumpless_target * stumpless_get_current_target(void)
Gets the current target.
STUMPLESS_PUBLIC_FUNCTION int stumpless_add_log(struct stumpless_target *target, int priority, const char *message,...)
Adds a log message with a priority to a given target.

Logs a message to the current target with err severity.

This function will be removed at compile time if STUMPLESS_DISABLE_ERR_LEVEL has been defined during build. If it is disabled, then this function is removed at compile time and will have no effect. Otherwise, it is equivalent to a call to stumpless_add_log with the provided message and calculated priority.

Note that if this function is disabled, then the arguments will not be evaluated, meaning that any side effects will not happen. Be sure that any side effects you rely on will not cause problems if they are left out during a build with err level calls disabled.

This function will log the given message with a severity of STUMPLESS_SEVERITY_ERR, and the facility defined by the STUMPLESS_DEFAULT_FACILITY. If you wish to specify a different priority, then you will need to use stumplog_er instead.

The message must be a valid format specifier string provided along with the appropriate number of variable arguments afterwards. This means that it should not be a user-controlled value under any circumstances. If you need a safer alternative without the risks of format strings, use stump_er_str instead.

Thread Safety: MT-Safe env locale This function is thread safe. Different target types handle thread safety differently, as some require per-target locks and others can rely on system libraries to log safely, but all targets support thread safe logging in some manner. For target-specific information on how thread safety is supported and whether AS or AC safety can be assumed, refer to the documentation for the target's header file (in the stumpless/target include folder).

Async Signal Safety: AS-Unsafe lock heap This function is not safe to call from signal handlers as some targets make use of non-reentrant locks to coordinate access. It also may make memory allocation calls to create internal cached structures, and memory allocation may not be signal safe.

Async Cancel Safety: AC-Unsafe lock heap This function is not safe to call from threads that may be asynchronously cancelled, due to the use of locks in some targets that could be left locked and the potential for memory allocation.

Parameters
...The message to log, optionally along with the values for any format specifiers valid in printf. This must be a valid UTF-8 string in shortest form.
Returns
A non-negative value if no error is encountered. If an error is encountered, then a negative value is returned and an error code is set appropriately. If the function is disabled then the effective return value is zero, although a return value of zero does not guarantee that this function is disabled.
Examples
chain_example.c, filter_example.c, and severity_level_example.c.

◆ stump_er_entry

#define stump_er_entry ( target,
entry )   stumpless_add_entry( ( target ), ( entry ) )

Adds an entry to a given target with err severity.

This function will be removed at compile time if STUMPLESS_DISABLE_ERR_LEVEL has been defined during build. If it is disabled, then this function is removed at compile time and will have no effect. Otherwise, it is equivalent to a call to stumpless_add_entry with the provided target and entry.

Note that if this function is disabled, then the arguments will not be evaluated, meaning that any side effects will not happen. Be sure that any side effects you rely on will not cause problems if they are left out during a build with err level calls disabled.

This call does not override the severity of the entry itself. Rather, it is intended to allow logging calls to be removed at compile time if the severity is known ahead of time.

Thread Safety: MT-Safe env locale This function is thread safe. Different target types handle thread safety differently, as some require per-target locks and others can rely on system libraries to log safely, but all targets support thread safe logging in some manner. For target-specific information on how thread safety is supported and whether AS or AC safety can be assumed, refer to the documentation for the target's header file (in the stumpless/target include folder).

Async Signal Safety: AS-Unsafe lock This function is not safe to call from signal handlers as some targets make use of non-reentrant locks to coordinate access.

Async Cancel Safety: AC-Unsafe lock This function is not safe to call from threads that may be asynchronously cancelled, due to the use of locks in some targets that could be left locked.

Parameters
targetThe target to send the entry to.
entryThe entry to send to the target.
Returns
A non-negative value if no error is encountered. If an error is encountered, then a negative value is returned and an error code is set appropriately. If the function is disabled then the effective return value is zero, although a return value of zero does not guarantee that this function is disabled.

◆ stump_er_log

#define stump_er_log ( target,
priority,
... )   stumpless_add_log( ( target ), ( priority ), __VA_ARGS__ )

Adds a message to a given target with the specified priority.

This function will be removed at compile time if STUMPLESS_DISABLE_ERR_LEVEL has been defined during build. If it is disabled, then this function is removed at compile time and will have no effect. Otherwise, it is equivalent to a call to stumplog with the provided message and priority.

Note that if this function is disabled, then the arguments will not be evaluated, meaning that any side effects will not happen. Be sure that any side effects you rely on will not cause problems if they are left out during a build with err level calls disabled.

The message must be a valid format specifier string provided along with the appropriate number of variable arguments afterwards. This means that it should not be a user-controlled value under any circumstances. If you need a safer alternative without the risks of format strings, use stump_er_log_str instead.

Thread Safety: MT-Safe env locale This function is thread safe. Different target types handle thread safety differently, as some require per-target locks and others can rely on system libraries to log safely, but all targets support thread safe logging in some manner. For target-specific information on how thread safety is supported and whether AS or AC safety can be assumed, refer to the documentation for the target's header file (in the stumpless/target include folder).

Async Signal Safety: AS-Unsafe lock heap This function is not safe to call from signal handlers as some targets make use of non-reentrant locks to coordinate access. It also may make memory allocation calls to create internal cached structures, and memory allocation may not be signal safe.

Async Cancel Safety: AC-Unsafe lock heap This function is not safe to call from threads that may be asynchronously cancelled, due to the use of locks in some targets that could be left locked and the potential for memory allocation.

Parameters
targetThe target to send the entry to.
priorityThe priority of the message - this should be the bitwise or of a single STUMPLESS_SEVERITY and single STUMPLESS_FACILITY value.
...The message to log, optionally along with the values for any format specifiers valid in printf. This must be a valid UTF-8 string in shortest form.
Returns
A non-negative value if no error is encountered. If an error is encountered, then a negative value is returned and an error code is set appropriately. If the function is disabled then the effective return value is zero, although a return value of zero does not guarantee that this function is disabled.

◆ stump_er_log_str

#define stump_er_log_str ( target,
priority,
message )   stumpless_add_log_str( ( target ), ( priority ), ( message ) )

Adds a message to a given target with the specified priority.

This function will be removed at compile time if STUMPLESS_DISABLE_ERR_LEVEL has been defined during build. If it is disabled, then this function is removed at compile time and will have no effect. Otherwise, it is equivalent to a call to stump_er_log_str with the provided target, message, and priority.

Note that if this function is disabled, then the arguments will not be evaluated, meaning that any side effects will not happen. Be sure that any side effects you rely on will not cause problems if they are left out during a build with err level calls disabled.

Thread Safety: MT-Safe env locale This function is thread safe. Different target types handle thread safety differently, as some require per-target locks and others can rely on system libraries to log safely, but all targets support thread safe logging in some manner. For target-specific information on how thread safety is supported and whether AS or AC safety can be assumed, refer to the documentation for the target's header file (in the stumpless/target include folder).

Async Signal Safety: AS-Unsafe lock heap This function is not safe to call from signal handlers as some targets make use of non-reentrant locks to coordinate access. It also may make memory allocation calls to create internal cached structures, and memory allocation may not be signal safe.

Async Cancel Safety: AC-Unsafe lock heap This function is not safe to call from threads that may be asynchronously cancelled, due to the use of locks in some targets that could be left locked and the potential for memory allocation.

Since
release v2.1.0.
Parameters
targetThe target to send the entry to.
priorityThe priority of the message - this should be the bitwise or of a single STUMPLESS_SEVERITY and single STUMPLESS_FACILITY value.
messageThe message to log. This must be a valid UTF-8 string in shortest form.
Returns
A non-negative value if no error is encountered. If an error is encountered, then a negative value is returned and an error code is set appropriately. If the function is disabled then the effective return value is zero, although a return value of zero does not guarantee that this function is disabled.

◆ stump_er_message

#define stump_er_message ( target,
... )
Value:
stumpless_add_log( ( target ), \
STUMPLESS_SEVERITY_ERR, \
__VA_ARGS__ )

Adds a message to a given target with err severity.

This function will be removed at compile time if STUMPLESS_DISABLE_ERR_LEVEL has been defined during build. If it is disabled, then this function is removed at compile time and will have no effect. Otherwise, it is equivalent to a call to stumpless_add_log with the provided message and calculated priority.

Note that if this function is disabled, then the arguments will not be evaluated, meaning that any side effects will not happen. Be sure that any side effects you rely on will not cause problems if they are left out during a build with err level calls disabled.

This function will log the given message with a severity of STUMPLESS_SEVERITY_ERR, and the facility defined by the STUMPLESS_DEFAULT_FACILITY. If you wish to specify a different priority, then you will need to use stump_er_log instead.

The message must be a valid format specifier string provided along with the appropriate number of variable arguments afterwards. This means that it should not be a user-controlled value under any circumstances. If you need a safer alternative without the risks of format strings, use stump_er_message_str instead.

Thread Safety: MT-Safe env locale This function is thread safe. Different target types handle thread safety differently, as some require per-target locks and others can rely on system libraries to log safely, but all targets support thread safe logging in some manner. For target-specific information on how thread safety is supported and whether AS or AC safety can be assumed, refer to the documentation for the target's header file (in the stumpless/target include folder).

Async Signal Safety: AS-Unsafe lock heap This function is not safe to call from signal handlers as some targets make use of non-reentrant locks to coordinate access. It also may make memory allocation calls to create internal cached structures, and memory allocation may not be signal safe.

Async Cancel Safety: AC-Unsafe lock heap This function is not safe to call from threads that may be asynchronously cancelled, due to the use of locks in some targets that could be left locked and the potential for memory allocation.

Parameters
targetThe target to send the entry to.
...The message to log, optionally along with the values for any format specifiers valid in printf. This must be a valid UTF-8 string in shortest form.
Returns
A non-negative value if no error is encountered. If an error is encountered, then a negative value is returned and an error code is set appropriately. If the function is disabled then the effective return value is zero, although a return value of zero does not guarantee that this function is disabled.

◆ stump_er_message_str

#define stump_er_message_str ( target,
message )
Value:
stumpless_add_log_str( ( target ), \
STUMPLESS_SEVERITY_ERR, \
( message ) )
STUMPLESS_PUBLIC_FUNCTION int stumpless_add_log_str(struct stumpless_target *target, int priority, const char *message)
Adds a log message with a priority to a given target.

Adds a message to a given target with err severity.

This function will be removed at compile time if STUMPLESS_DISABLE_ERR_LEVEL has been defined during build. If it is disabled, then this function is removed at compile time and will have no effect. Otherwise, it is equivalent to a call to stumpless_add_log_str with the provided target and message.

Note that if this function is disabled, then the arguments will not be evaluated, meaning that any side effects will not happen. Be sure that any side effects you rely on will not cause problems if they are left out during a build with err level calls disabled.

This function will log the given message with a severity of STUMPLESS_SEVERITY_ERR, and the facility defined by the STUMPLESS_DEFAULT_FACILITY. If you wish to specify a different priority, then you will need to use stump_er_log instead.

Thread Safety: MT-Safe env locale This function is thread safe. Different target types handle thread safety differently, as some require per-target locks and others can rely on system libraries to log safely, but all targets support thread safe logging in some manner. For target-specific information on how thread safety is supported and whether AS or AC safety can be assumed, refer to the documentation for the target's header file (in the stumpless/target include folder).

Async Signal Safety: AS-Unsafe lock heap This function is not safe to call from signal handlers as some targets make use of non-reentrant locks to coordinate access. It also may make memory allocation calls to create internal cached structures, and memory allocation may not be signal safe.

Async Cancel Safety: AC-Unsafe lock heap This function is not safe to call from threads that may be asynchronously cancelled, due to the use of locks in some targets that could be left locked and the potential for memory allocation.

Since
release v2.1.0.
Parameters
targetThe target to send the entry to.
messageThe message to log. This must be a valid UTF-8 string in shortest form.
Returns
A non-negative value if no error is encountered. If an error is encountered, then a negative value is returned and an error code is set appropriately. If the function is disabled then the effective return value is zero, although a return value of zero does not guarantee that this function is disabled.

◆ stump_er_str

#define stump_er_str ( message)
Value:
STUMPLESS_SEVERITY_ERR | \
( message ) )

Logs a message to the current target with err severity.

This function will be removed at compile time if STUMPLESS_DISABLE_ERR_LEVEL has been defined during build. If it is disabled, then this function is removed at compile time and will have no effect. Otherwise, it is equivalent to a call to stumpless_add_log with the provided message and calculated priority.

Note that if this function is disabled, then the arguments will not be evaluated, meaning that any side effects will not happen. Be sure that any side effects you rely on will not cause problems if they are left out during a build with err level calls disabled.

This function will log the given message with a severity of STUMPLESS_SEVERITY_ERR, and the facility defined by the STUMPLESS_DEFAULT_FACILITY. If you wish to specify a different priority, then you will need to use stumplog_em instead.

Thread Safety: MT-Safe env locale This function is thread safe. Different target types handle thread safety differently, as some require per-target locks and others can rely on system libraries to log safely, but all targets support thread safe logging in some manner. For target-specific information on how thread safety is supported and whether AS or AC safety can be assumed, refer to the documentation for the target's header file (in the stumpless/target include folder).

Async Signal Safety: AS-Unsafe lock heap This function is not safe to call from signal handlers as some targets make use of non-reentrant locks to coordinate access. It also may make memory allocation calls to create internal cached structures, and memory allocation may not be signal safe.

Async Cancel Safety: AC-Unsafe lock heap This function is not safe to call from threads that may be asynchronously cancelled, due to the use of locks in some targets that could be left locked and the potential for memory allocation.

Since
release v2.1.0.
Parameters
messageThe message to log. This must be a valid UTF-8 string in shortest form.
Returns
A non-negative value if no error is encountered. If an error is encountered, then a negative value is returned and an error code is set appropriately. If the function is disabled then the effective return value is zero, although a return value of zero does not guarantee that this function is disabled.

◆ stumplog_er

#define stumplog_er ( priority,
... )   stumplog( ( priority ), __VA_ARGS__ )

Adds a message to the current target with the specified priority.

This function will be removed at compile time if STUMPLESS_DISABLE_ERR_LEVEL has been defined during build. If it is disabled, then this function is removed at compile time and will have no effect. Otherwise, it is equivalent to a call to stumplog with the provided priority and message.

Note that if this function is disabled, then the arguments will not be evaluated, meaning that any side effects will not happen. Be sure that any side effects you rely on will not cause problems if they are left out during a build with err level calls disabled.

The message must be a valid format specifier string provided along with the appropriate number of variable arguments afterwards. This means that it should not be a user-controlled value under any circumstances. If you need a safer alternative without the risks of format strings, use stumplog_er_str instead.

Thread Safety: MT-Safe env locale This function is thread safe. Different target types handle thread safety differently, as some require per-target locks and others can rely on system libraries to log safely, but all targets support thread safe logging in some manner. For target-specific information on how thread safety is supported and whether AS or AC safety can be assumed, refer to the documentation for the target's header file (in the stumpless/target include folder).

Async Signal Safety: AS-Unsafe lock heap This function is not safe to call from signal handlers as some targets make use of non-reentrant locks to coordinate access. It also may make memory allocation calls to create internal cached structures, and memory allocation may not be signal safe.

Async Cancel Safety: AC-Unsafe lock heap This function is not safe to call from threads that may be asynchronously cancelled, due to the use of locks in some targets that could be left locked and the potential for memory allocation.

Parameters
priorityThe priority of the message - this should be the bitwise or of a single STUMPLESS_SEVERITY and single STUMPLESS_FACILITY value.
...The message to log, optionally along with the values for any format specifiers valid in printf. This must be a valid UTF-8 string in shortest form.

◆ stumplog_er_str

#define stumplog_er_str ( priority,
message )   stumplog_str( ( priority ), ( message ) )

Adds a message to the current target with the specified priority.

This function will be removed at compile time if STUMPLESS_DISABLE_ERR_LEVEL has been defined during build. If it is disabled, then this function is removed at compile time and will have no effect. Otherwise, it is equivalent to a call to stumplog_str with the provided message and calculated priority.

Note that if this function is disabled, then the arguments will not be evaluated, meaning that any side effects will not happen. Be sure that any side effects you rely on will not cause problems if they are left out during a build with err level calls disabled.

Thread Safety: MT-Safe env locale This function is thread safe. Different target types handle thread safety differently, as some require per-target locks and others can rely on system libraries to log safely, but all targets support thread safe logging in some manner. For target-specific information on how thread safety is supported and whether AS or AC safety can be assumed, refer to the documentation for the target's header file (in the stumpless/target include folder).

Async Signal Safety: AS-Unsafe lock heap This function is not safe to call from signal handlers as some targets make use of non-reentrant locks to coordinate access. It also may make memory allocation calls to create internal cached structures, and memory allocation may not be signal safe.

Async Cancel Safety: AC-Unsafe lock heap This function is not safe to call from threads that may be asynchronously cancelled, due to the use of locks in some targets that could be left locked and the potential for memory allocation.

Since
release v2.1.0.
Parameters
priorityThe priority of the message - this should be the bitwise or of a single STUMPLESS_SEVERITY and single STUMPLESS_FACILITY value.
messageThe message to log. This must be a valid UTF-8 string in shortest form.