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pipepriv.c [79ae36dd:160b75e] in mainline

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r79ae36dd	r160b75e
44	44	void pipe_start_transaction(usb_pipe_t *pipe)
45	45	{
46		fibril_mutex_lock(&pipe->hc_~~sess~~_mutex);
	46	fibril_mutex_lock(&pipe->hc_phone_mutex);
47	47	}
48	48
…	…
53	53	void pipe_end_transaction(usb_pipe_t *pipe)
54	54	{
55		fibril_mutex_unlock(&pipe->hc_~~sess~~_mutex);
	55	fibril_mutex_unlock(&pipe->hc_phone_mutex);
56	56	}
57	57
…	…
85	85	{
86	86	pipe_acquire(pipe);
87
	87
88	88	if (pipe->refcount == 0) {
89	89	/* Need to open the phone by ourselves. */
90		async_sess_t *sess =
91		devman_device_connect(EXCHANGE_SERIALIZE, pipe->wire->hc_handle, 0);
92		if (!sess) {
	90	int phone = devman_device_connect(pipe->wire->hc_handle, 0);
	91	if (phone < 0) {
93	92	if (hide_failure) {
94	93	pipe->refcount_soft++;
95		pipe_release(pipe);
96		return EOK;
	94	phone = EOK;
97	95	}
98
99	96	pipe_release(pipe);
100		return ~~ENOMEM~~;
	97	return phone;
101	98	}
102
103	99	/*
104	100	* No locking is needed, refcount is zero and whole pipe
105	101	* mutex is locked.
106	102	*/
107
108		pipe->hc_sess = sess;
	103	pipe->hc_phone = phone;
109	104	}
110
111	105	pipe->refcount++;
	106
112	107	pipe_release(pipe);
113
	108
114	109	return EOK;
115	110	}
…	…
122	117	{
123	118	pipe_acquire(pipe);
124
125	119	if (pipe->refcount_soft > 0) {
126	120	pipe->refcount_soft--;
…	…
128	122	return;
129	123	}
130
131	124	assert(pipe->refcount > 0);
132
133	125	pipe->refcount--;
134
135	126	if (pipe->refcount == 0) {
136	127	/* We were the last users, let's hang-up. */
137		async_hangup(pipe->hc_~~sess~~);
138		pipe->hc_~~sess = NULL~~;
	128	async_hangup(pipe->hc_phone);
	129	pipe->hc_phone = -1;
139	130	}
140
141	131	pipe_release(pipe);
142	132	}

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