453 lines
17 KiB
C
453 lines
17 KiB
C
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/* libiso_msgs
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Message handling facility of libisofs.
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Copyright (C) 2006-2007 Thomas Schmitt <scdbackup@gmx.net>,
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provided under GPL
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*/
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/*
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*Never* set this macro outside libiso_msgs.c !
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The entrails of the message handling facility are not to be seen by
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the other library components or the applications.
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*/
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#ifdef LIBISO_MSGS_H_INTERNAL
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#ifndef LIBISO_MSGS_SINGLE_THREADED
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#include <pthread.h>
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#endif
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struct libiso_msgs_item {
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double timestamp;
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pid_t process_id;
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int driveno;
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int severity;
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int priority;
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/* Apply for your developer's error code range at
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libburn-hackers@pykix.org
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Report introduced codes in the list below. */
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int error_code;
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char *msg_text;
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int os_errno;
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struct libiso_msgs_item *prev,*next;
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};
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struct libiso_msgs {
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struct libiso_msgs_item *oldest;
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struct libiso_msgs_item *youngest;
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int count;
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int queue_severity;
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int print_severity;
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char print_id[81];
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#ifndef LIBISO_MSGS_SINGLE_THREADED
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pthread_mutex_t lock_mutex;
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#endif
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};
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#endif /* LIBISO_MSGS_H_INTERNAL */
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#ifndef LIBISO_MSGS_H_INCLUDED
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#define LIBISO_MSGS_H_INCLUDED 1
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#ifndef LIBISO_MSGS_H_INTERNAL
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/* Public Opaque Handles */
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/** A pointer to this is a opaque handle to a message handling facility */
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struct libiso_msgs;
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/** A pointer to this is a opaque handle to a single message item */
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struct libiso_msgs_item;
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#endif /* ! LIBISO_MSGS_H_INTERNAL */
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/* Public Macros */
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/* Registered Severities */
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/* It is well advisable to let applications select severities via strings and
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forwarded functions libiso_msgs__text_to_sev(), libiso_msgs__sev_to_text().
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These macros are for use by libdax/libburn only.
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*/
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/** Use this to get messages of any severity. Do not use for submitting.
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*/
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#define LIBISO_MSGS_SEV_ALL 0x00000000
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/** Debugging messages not to be visible to normal users by default
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*/
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#define LIBISO_MSGS_SEV_DEBUG 0x10000000
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/** Update of a progress report about long running actions
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*/
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#define LIBISO_MSGS_SEV_UPDATE 0x20000000
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/** Not so usual events which were gracefully handled
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*/
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#define LIBISO_MSGS_SEV_NOTE 0x30000000
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/** Possibilities to achieve a better result
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*/
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#define LIBISO_MSGS_SEV_HINT 0x40000000
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/** Warnings about problems which could not be handled optimally
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*/
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#define LIBISO_MSGS_SEV_WARNING 0x50000000
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/** Non-fatal error messages indicating that parts of the action failed
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but processing will/should go on
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*/
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#define LIBISO_MSGS_SEV_SORRY 0x60000000
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/** An error message which puts the whole operation of libdax in question
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*/
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#define LIBISO_MSGS_SEV_FATAL 0x70000000
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/** A message from an abort handler which will finally finish libburn
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*/
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#define LIBISO_MSGS_SEV_ABORT 0x71000000
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/** A severity to exclude resp. discard any possible message.
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Do not use this severity for submitting.
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*/
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#define LIBISO_MSGS_SEV_NEVER 0x7fffffff
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/* Registered Priorities */
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/* Priorities are to be used by libburn/libdax only. */
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#define LIBISO_MSGS_PRIO_ZERO 0x00000000
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#define LIBISO_MSGS_PRIO_LOW 0x10000000
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#define LIBISO_MSGS_PRIO_MEDIUM 0x20000000
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#define LIBISO_MSGS_PRIO_HIGH 0x30000000
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#define LIBISO_MSGS_PRIO_TOP 0x7ffffffe
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/* Do not use this priority for submitting */
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#define LIBISO_MSGS_PRIO_NEVER 0x7fffffff
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/* Public Functions */
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/* Calls initiated from inside libdax/libburn */
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/** Create new empty message handling facility with queue.
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return >0 success, <=0 failure
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*/
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int libiso_msgs_new(struct libiso_msgs **m, int flag);
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/** Destroy a message handling facility and all its eventual messages.
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The submitted pointer gets set to NULL.
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return 1 for success, 0 for pointer to NULL
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*/
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int libiso_msgs_destroy(struct libiso_msgs **m, int flag);
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/** Submit a message to a message handling facility.
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@param driveno libdax drive number. Use -1 if no number is known.
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@param error_code Unique error code. Use only registered codes. See below.
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The same unique error_code may be issued at different
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occasions but those should be equivalent out of the view
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of a libdax application. (E.g. "cannot open ATA drive"
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versus "cannot open SCSI drive" would be equivalent.)
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@param severity The LIBISO_MSGS_SEV_* of the event.
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@param priority The LIBISO_MSGS_PRIO_* number of the event.
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@param msg_text Printable and human readable message text.
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@param os_errno Eventual error code from operating system (0 if none)
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return 1 on success, 0 on rejection, <0 for severe errors
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*/
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int libiso_msgs_submit(struct libiso_msgs *m, int driveno, int error_code,
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int severity, int priority, char *msg_text,
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int os_errno, int flag);
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/* Calls from applications (to be forwarded by libdax/libburn) */
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/** Convert a registered severity number into a severity name
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@param flag Bitfield for control purposes:
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bit0= list all severity names in a newline separated string
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@return >0 success, <=0 failure
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*/
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int libiso_msgs__sev_to_text(int severity, char **severity_name,
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int flag);
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/** Convert a severity name into a severity number,
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return >0 success, <=0 failure
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*/
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int libiso_msgs__text_to_sev(char *severity_name, int *severity,
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int flag);
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/** Set minimum severity for messages to be queued (default
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LIBISO_MSGS_SEV_ALL) and for messages to be printed directly to stderr
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(default LIBISO_MSGS_SEV_NEVER).
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@param print_id A text of at most 80 characters to be printed before
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any eventually printed message (default is "libdax: ").
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return always 1 for now
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*/
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int libiso_msgs_set_severities(struct libiso_msgs *m, int queue_severity,
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int print_severity, char *print_id, int flag);
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/** Obtain a message item that has at least the given severity and priority.
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Usually all older messages of lower severity are discarded then. If no
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item of sufficient severity was found, all others are discarded from the
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queue.
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return 1 if a matching item was found, 0 if not, <0 for severe errors
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*/
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int libiso_msgs_obtain(struct libiso_msgs *m, struct libiso_msgs_item **item,
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int severity, int priority, int flag);
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/** Destroy a message item obtained by libiso_msgs_obtain(). The submitted
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pointer gets set to NULL.
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Caution: Copy eventually obtained msg_text before destroying the item,
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if you want to use it further.
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return 1 for success, 0 for pointer to NULL, <0 for severe errors
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*/
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int libiso_msgs_destroy_item(struct libiso_msgs *m,
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struct libiso_msgs_item **item, int flag);
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/** Obtain from a message item the three application oriented components as
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submitted with the originating call of libiso_msgs_submit().
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Caution: msg_text becomes a pointer into item, not a copy.
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return 1 on success, 0 on invalid item, <0 for servere errors
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*/
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int libiso_msgs_item_get_msg(struct libiso_msgs_item *item,
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int *error_code, char **msg_text, int *os_errno,
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int flag);
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/** Obtain from a message item the submitter identification submitted
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with the originating call of libiso_msgs_submit().
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return 1 on success, 0 on invalid item, <0 for servere errors
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*/
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int libiso_msgs_item_get_origin(struct libiso_msgs_item *item,
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double *timestamp, pid_t *process_id, int *driveno,
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int flag);
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/** Obtain from a message item severity and priority as submitted
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with the originating call of libiso_msgs_submit().
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return 1 on success, 0 on invalid item, <0 for servere errors
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*/
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int libiso_msgs_item_get_rank(struct libiso_msgs_item *item,
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int *severity, int *priority, int flag);
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#ifdef LIDBAX_MSGS_________________
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/* Registered Error Codes */
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Format: error_code (LIBISO_MSGS_SEV_*,LIBISO_MSGS_PRIO_*) = explanation
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If no severity or priority are fixely associates, use "(,)".
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------------------------------------------------------------------------------
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Range "libiso_msgs" : 0x00000000 to 0x0000ffff
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0x00000000 (ALL,ZERO) = Initial setting in new libiso_msgs_item
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0x00000001 (DEBUG,ZERO) = Test error message
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0x00000002 (DEBUG,ZERO) = Debugging message
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------------------------------------------------------------------------------
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Range "elmom" : 0x00010000 to 0x0001ffff
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------------------------------------------------------------------------------
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Range "scdbackup" : 0x00020000 to 0x0002ffff
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Acessing and defending drives:
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0x00020001 (SORRY,LOW) = Cannot open busy device
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0x00020002 (SORRY,HIGH) = Encountered error when closing drive
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0x00020003 (SORRY,HIGH) = Could not grab drive
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0x00020004 (NOTE,HIGH) = Opened O_EXCL scsi sibling
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0x00020005 (SORRY,HIGH) = Failed to open device
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0x00020006 (FATAL,HIGH) = Too many scsi siblings
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0x00020007 (NOTE,HIGH) = Closed O_EXCL scsi siblings
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0x00020008 (SORRY,HIGH) = Device busy. Failed to fcntl-lock
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General library operations:
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0x00020101 (WARNING,HIGH) = Cannot find given worker item
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0x00020102 (SORRY,HIGH) = A drive operation is still going on
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0x00020103 (WARNING,HIGH) = After scan a drive operation is still going on
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0x00020104 (SORRY,HIGH) = NULL pointer caught
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0x00020105 (SORRY,HIGH) = Drive is already released
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0x00020106 (SORRY,HIGH) = Drive is busy on attempt to close
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0x00020107 (SORRY,HIGH) = Drive is busy on attempt to shut down library
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0x00020108 (SORRY,HIGH) = Drive is not grabbed on disc status inquiry
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0x00020108 (FATAL,HIGH) = Could not allocate new drive object
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0x00020109 (FATAL,HIGH) = Library not running
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0x0002010a (FATAL,HIGH) = Unsuitable track mode
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0x0002010b (FATAL,HIGH) = Burn run failed
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0x0002010c (FATAL,HIGH) = Failed to transfer command to drive
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0x0002010d (DEBUG,HIGH) = Could not inquire TOC
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0x0002010e (FATAL,HIGH) = Attempt to read ATIP from ungrabbed drive
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0x0002010f (DEBUG,HIGH) = SCSI error condition on command
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0x00020110 (FATAL,HIGH) = Persistent drive address too long
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0x00020111 (FATAL,HIGH) = Could not allocate new auxiliary object
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0x00020112 (SORRY,HIGH) = Bad combination of write_type and block_type
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0x00020113 (FATAL,HIGH) = Drive capabilities not inquired yet
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0x00020114 (SORRY,HIGH) = Attempt to set ISRC with bad data
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0x00020115 (SORRY,HIGH) = Attempt to set track mode to unusable value
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0x00020116 (FATAL,HIGH) = Track mode has unusable value
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0x00020117 (FATAL,HIGH) = toc_entry of drive is already in use
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0x00020118 (DEBUG,HIGH) = Closing track
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0x00020119 (DEBUG,HIGH) = Closing session
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0x0002011a (NOTE,HIGH) = Padding up track to minimum size
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0x0002011b (FATAL,HIGH) = Attempt to read track info from ungrabbed drive
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0x0002011c (FATAL,HIGH) = Attempt to read track info from busy drive
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0x0002011d (FATAL,HIGH) = SCSI error on write
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0x0002011e (SORRY,HIGH) = Unsuitable media detected
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0x0002011f (SORRY,HIGH) = Burning is restricted to a single track
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0x00020120 (NOTE,HIGH) = FORMAT UNIT ignored
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0x00020121 (FATAL,HIGH) = Write preparation setup failed
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0x00020122 (FATAL,HIGH) = SCSI error on format_unit
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0x00020123 (SORRY,HIGH) = DVD Media are unsuitable for desired track type
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0x00020124 (SORRY,HIGH) = SCSI error on set_streaming
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0x00020125 (SORRY,HIGH) = Write start address not supported
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0x00020126 (SORRY,HIGH) = Write start address not properly aligned
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0x00020127 (NOTE,HIGH) = Write start address is ...
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0x00020128 (FATAL,HIGH) = Unsupported inquiry_type with mmc_get_performance
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0x00020129 (SORRY,HIGH) = Will not format media type
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0x0002012a (FATAL,HIGH) = Cannot inquire write mode capabilities
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0x0002012b (FATAL,HIGH) = Drive offers no suitable write mode with this job
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0x0002012c (SORRY,HIGH) = Too many logical tracks recorded
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0x0002012d (FATAL,HIGH) = Exceeding range of permissible write addresses
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0x0002012e (NOTE,HIGH) = Activated track default size
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0x0002012f (SORRY,HIGH) = SAO is restricted to single fixed size session
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0x00020130 (SORRY,HIGH) = Drive and media state unsuitable for blanking
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0x00020131 (SORRY,HIGH) = No suitable formatting type offered by drive
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0x00020132 (SORRY,HIGH) = Selected format is not suitable for libburn
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0x00020133 (SORRY,HIGH) = Cannot mix data and audio in SAO mode
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0x00020134 (NOTE,HIGH) = Defaulted TAO to DAO
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0x00020135 (SORRY,HIGH) = Cannot perform TAO, job unsuitable for DAO
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0x00020136 (SORRY,HIGH) = DAO burning restricted to single fixed size track
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0x00020137 (HINT,HIGH) = TAO would be possible
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0x00020138 (FATAL,HIGH) = Cannot reserve track
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0x00020139 (SORRY,HIGH) = Write job parameters are unsuitable
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0x0002013a (FATAL,HIGH) = No suitable media detected
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0x0002013b (DEBUG,HIGH) = SCSI command indicates host or driver error
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0x0002013c (SORRY,HIGH) = Malformed capabilities page 2Ah received
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0x0002013d (DEBUG,LOW) = Waiting for free buffer space takes long time
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0x0002013e (SORRY,HIGH) = Timeout with waiting for free buffer. Now disabled
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0x0002013f (DEBUG,LOW) = Reporting total time spent with waiting for buffer
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libiso_audioxtr:
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0x00020200 (SORRY,HIGH) = Cannot open audio source file
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0x00020201 (SORRY,HIGH) = Audio source file has unsuitable format
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0x00020202 (SORRY,HIGH) = Failed to prepare reading of audio data
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------------------------------------------------------------------------------
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Range "vreixo" : 0x00030000 to 0x0003ffff
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General:
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0x00031001 (SORRY,HIGH) = Can't read file (ignored)
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0x00031002 (FATAL,HIGH) = Can't read file (operation canceled)
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Image reading:
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0x00031000 (FATAL,HIGH) = Unsupported ISO-9660 image
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0x00031001 (HINT,MEDIUM) = Unsupported Vol Desc that will be ignored
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0x00031002 (FATAL,HIGH) = Damaged ISO-9660 image
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0x00031003 (SORRY,HIGH) = Can't read previous image file
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Rock-Ridge:
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0x00030101 (HINT,MEDIUM) = Unsupported SUSP entry that will be ignored
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0x00030102 (SORRY,HIGH) = Wrong/damaged SUSP entry
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0x00030103 (WARNING,MEDIUM)= Multiple SUSP ER entries where found
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0x00030111 (SORRY,HIGH) = Unsupported RR feature
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0x00030112 (SORRY,HIGH) = Error in a Rock Ridge entry
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El-Torito:
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0x00030201 (HINT,MEDIUM) = Unsupported Boot Vol Desc that will be ignored
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0x00030202 (SORRY,HIGH) = Wrong El-Torito catalog
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0x00030203 (HINT,MEDIUM) = Unsupported El-Torito feature
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0x00030204 (SORRY,HIGH) = Invalid file to be an El-Torito image
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0x00030205 (WARNING,MEDIUM)= Can't properly patch isolinux image
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0x00030206 (WARNING,MEDIUM)= Copying El-Torito from a previous image without
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enought info about it
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Joliet:
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0x00030301 (NOTE,MEDIUM) = Unsupported file type for Joliet tree
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------------------------------------------------------------------------------
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#endif /* LIDBAX_MSGS_________________ */
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#ifdef LIBISO_MSGS_H_INTERNAL
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/* Internal Functions */
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/** Lock before doing side effect operations on m */
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static int libiso_msgs_lock(struct libiso_msgs *m, int flag);
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/** Unlock after effect operations on m are done */
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static int libiso_msgs_unlock(struct libiso_msgs *m, int flag);
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/** Create new empty message item.
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@param link Previous item in queue
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return >0 success, <=0 failure
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*/
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static int libiso_msgs_item_new(struct libiso_msgs_item **item,
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struct libiso_msgs_item *link, int flag);
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/** Destroy a message item obtained by libiso_msgs_obtain(). The submitted
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pointer gets set to NULL.
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@param flag Bitfield for control purposes (unused yet, submit 0)
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@return 1 for success, 0 for pointer to NULL
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*/
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static int libiso_msgs_item_destroy(struct libiso_msgs_item **item, int flag);
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#endif /* LIBISO_MSGS_H_INTERNAL */
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#endif /* ! LIBISO_MSGS_H_INCLUDED */
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