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Type consistency tweaks

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Better type consistency when returning enums flowcntrl_e and
parity_e. See also PR #92.
This commit is contained in:
Nick Patavalis
2018-02-10 10:04:14 +02:00
parent 6d8bf34e9f
commit a412f6583a
3 changed files with 17 additions and 11 deletions
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14
term.h
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@ -161,6 +161,7 @@ enum term_errno_e {
* P_ODD - odd parity
* P_MARK - mark parity (parity bit always 1)
* P_SPACE - space parity (parity bit always 0)
* P_ERROR - marker to indicate error for functions returning parity_e
*/
enum parity_e {
P_NONE = 0,
@ -168,7 +169,7 @@ enum parity_e {
P_ODD,
P_MARK,
P_SPACE,
P_ERROR = -1
P_ERROR
};
/*
@ -180,13 +181,14 @@ enum parity_e {
* FC_RTSCTS - RTS/CTS handshaking, also known as hardware
* flow-control.
* FC_XONXOFF - xon/xoff flow control.
* FC_ERROR - marker to indicate error for functions returning flowcntrl_e
*/
enum flowcntrl_e {
FC_NONE = 0,
FC_RTSCTS,
FC_XONXOFF,
FC_OTHER,
FC_ERROR = -1
FC_ERROR
};
/*
@ -551,8 +553,8 @@ int term_get_baudrate (int fd, int *ispeed);
* Reads and decodes the current parity settings in the
* "currtermios" structure of the managed filedes "fd".
*
* Returns one of the "enum parity_e" members, or -1 if "fd" does not
* correspond to a managed filedes.
* Returns one of the "enum parity_e" members. Returns P_ERROR if "fd"
* does not correspond to a managed filedes.
*/
enum parity_e term_get_parity (int fd);
@ -581,8 +583,8 @@ int term_get_stopbits (int fd);
* Reads and decodes the current flow-control settings in the
* "currtermios" structure of the managed filedes "fd".
*
* Returns one of the "enum flowcntrl_e" members, or -1 if "fd" does
* not correspond to a managed filedes.
* Returns one of the "enum flowcntrl_e" members. Returns FC_ERROR if
* "fd" does not correspond to a managed filedes.
*/
enum flowcntrl_e term_get_flowcntrl (int fd);