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Some structure elements should be marked volatile

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1222 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2008-11-13 20:05:31 +00:00
parent 392f59af18
commit b5a667dac6
1 changed files with 16 additions and 22 deletions
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include/nuttx/serial.h
+16 -22
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@@ -74,11 +74,11 @@
struct uart_buffer_s
{
sem_t sem; /* Used to control exclusive access to the buffer */
sint16 head; /* Index to the head [IN] index in the buffer */
sint16 tail; /* Index to the tail [OUT] index in the buffer */
sint16 size; /* The allocated size of the buffer */
FAR char *buffer; /* Pointer to the allocated buffer memory */
sem_t sem; /* Used to control exclusive access to the buffer */
volatile sint16 head; /* Index to the head [IN] index in the buffer */
volatile sint16 tail; /* Index to the tail [OUT] index in the buffer */
sint16 size; /* The allocated size of the buffer */
FAR char *buffer; /* Pointer to the allocated buffer memory */
};
/* This structure defines all of the operations providd by the architecture specific
@@ -179,23 +179,17 @@ struct uart_ops_s
struct uart_dev_s
{
ubyte open_count; /* The number of times
* the device has been opened */
boolean xmitwaiting; /* TRUE: User is waiting
* for space in xmit.buffer */
boolean recvwaiting; /* TRUE: User is waiting
* for space in recv.buffer */
boolean isconsole; /* TRUE: This is the serial console */
sem_t closesem; /* Locks out new opens while
* close is in progress */
sem_t xmitsem; /* Used to wakeup user waiting
* for space in xmit.buffer */
sem_t recvsem; /* Used to wakeup user waiting
* for sapce in recv.buffer */
struct uart_buffer_s xmit; /* Describes transmit buffer */
struct uart_buffer_s recv; /* Describes receive buffer */
FAR const struct uart_ops_s *ops; /* Arch-specific operations */
FAR void *priv; /* Used by the arch-specific logic */
ubyte open_count; /* Number of times the device has been opened */
volatile boolean xmitwaiting; /* TRUE: User waiting for space in xmit.buffer */
volatile boolean recvwaiting; /* TRUE: User waiting for data in recv.buffer */
boolean isconsole; /* TRUE: This is the serial console */
sem_t closesem; /* Locks out new open while close is in progress */
sem_t xmitsem; /* Wakeup user waiting for space in xmit.buffer */
sem_t recvsem; /* Wakeup user waiting for data in recv.buffer */
struct uart_buffer_s xmit; /* Describes transmit buffer */
struct uart_buffer_s recv; /* Describes receive buffer */
FAR const struct uart_ops_s *ops; /* Arch-specific operations */
FAR void *priv; /* Used by the arch-specific logic */
};
typedef struct uart_dev_s uart_dev_t;