Fix misspellings

Fix minor typos on a files in ./dispatch and ./private.

Author: dbworku

dispatch/io.h

@@ -38,7 +38,7 @@ __BEGIN_DECLS
  * The application may set policies on the dispatch I/O channel to indicate the
  * desired frequency of I/O handlers for long-running operations.
  *
- * Dispatch I/O also provides a memory managment model for I/O buffers that
+ * Dispatch I/O also provides a memory management model for I/O buffers that
  * avoids unnecessary copying of data when pipelined between channels. Dispatch
  * I/O monitors the overall memory pressure and I/O access patterns for the
  * application to optimize resource utilization.
@@ -168,7 +168,7 @@ DISPATCH_DECL(dispatch_io);
  * bytes. Read and write operations on a channel of this type are performed
  * serially (in order of creation) and read/write data at the file pointer
  * position that is current at the time the operation starts executing.
- * Operations of different type (read vs. write) may be perfomed simultaneously.
+ * Operations of different type (read vs. write) may be performed simultaneously.
  * Offsets passed to operations on a channel of this type are ignored.
  *
  * @const DISPATCH_IO_RANDOM	A dispatch I/O channel representing a random

dispatch/queue.h

@@ -920,7 +920,7 @@ dispatch_barrier_sync_f(dispatch_queue_t queue,
  * The key to set the context for, typically a pointer to a static variable
  * specific to the subsystem. Keys are only compared as pointers and never
  * dereferenced. Passing a string constant directly is not recommended.
- * The NULL key is reserved and attemps to set a context for it are ignored.
+ * The NULL key is reserved and attempts to set a context for it are ignored.
  *
  * @param context
  * The new subsystem-specific context for the object. This may be NULL.

dispatch/semaphore.h

@@ -44,7 +44,7 @@ __BEGIN_DECLS
  *
  * @discussion
  * Passing zero for the value is useful for when two threads need to reconcile
- * the completion of a particular event. Passing a value greather than zero is
+ * the completion of a particular event. Passing a value greater than zero is
  * useful for managing a finite pool of resources, where the pool size is equal
  * to the value.
  *

dispatch/source.h

@@ -64,7 +64,7 @@ __BEGIN_DECLS
  * is being monitored by the dispatch source. Constants of this type are
  * passed as a parameter to dispatch_source_create() and determine how the
  * handle argument is interpreted (i.e. as a file descriptor, mach port,
- * signal number, process identifer, etc.), and how the mask arugment is
+ * signal number, process identifier, etc.), and how the mask argument is
  * interpreted.
  */
 typedef const struct dispatch_source_type_s *dispatch_source_type_t;

dispatch/time.h

@@ -102,7 +102,7 @@ dispatch_time(dispatch_time_t when, int64_t delta);
  * On Mac OS X the wall clock is based on gettimeofday(3).
  *
  * @param when
- * A struct timespect to add time to. If NULL is passed, then
+ * A struct timespec to add time to. If NULL is passed, then
  * dispatch_walltime() will use the result of gettimeofday(3).
  *
  * @param delta

private/data_private.h

@@ -159,7 +159,7 @@ dispatch_data_apply_f(dispatch_data_t data, void *context,
  *
  * @param data		The data object to make a memory entry for.
  * @result		A mach port for the newly made memory entry, or
- *			MACH_PORT_NULL if an error ocurred.
+ *			MACH_PORT_NULL if an error occurred.
  */
 __OSX_AVAILABLE_STARTING(__MAC_10_9,__IPHONE_6_0)
 DISPATCH_EXPORT DISPATCH_NONNULL_ALL DISPATCH_NOTHROW
@@ -286,7 +286,7 @@ DISPATCH_DATA_FORMAT_TYPE_DECL(utf_any);
  * Flags specifying the input format of the source dispatch_data_t
  *
  * @param output_type
- * Flags specifying the expected output format of the resulting transfomation.
+ * Flags specifying the expected output format of the resulting transformation.
  *
  * @result
  * A newly created dispatch data object, dispatch_data_empty if no has been

private/introspection_private.h

@@ -535,7 +535,7 @@ typedef void (*dispatch_introspection_hook_queue_item_complete_t)(
  * @typedef dispatch_introspection_hooks_s
  *
  * @abstract
- * A structure of function pointer hoooks into libdispatch.
+ * A structure of function pointer hooks into libdispatch.
  */
 
 typedef struct dispatch_introspection_hooks_s {

private/voucher_activity_private.h

@@ -198,7 +198,7 @@ voucher_activity_start_with_location(voucher_activity_trace_id_t trace_id,
  * @function voucher_activity_end
  *
  * @abstract
- * Unmarks the current thread if it is marked as particpating in the activity
+ * Unmarks the current thread if it is marked as participating in the activity
  * with the specified identifier.
  *
  * @discussion

private/voucher_private.h

@@ -151,7 +151,7 @@ voucher_replace_default_voucher(void);
  *
  * @discussion
  * This is only intended for use by CoreFoundation to explicitly manage the
- * App Nap state of an application following receiption of a de-nap IPC message.
+ * App Nap state of an application following reception of a de-nap IPC message.
  *
  * CAUTION: Do NOT use this SPI without contacting the Darwin Runtime team.
  */